[{"language":[{"iso":"eng"}],"_id":"21827","external_id":{"arxiv":["1903.12385"]},"user_id":"15540","status":"public","publication":"Graphs and Combinatorics","type":"journal_article","title":"Fractional Matchings, Component-Factors and Edge-Chromatic Critical Graphs","doi":"10.1007/s00373-020-02266-6","date_updated":"2023-05-16T10:45:10Z","date_created":"2021-04-30T07:22:24Z","author":[{"first_name":"Antje","full_name":"Klopp, Antje","last_name":"Klopp"},{"first_name":"Eckhard","last_name":"Steffen","orcid":"0000-0002-9808-7401","id":"15548","full_name":"Steffen, Eckhard"}],"year":"2021","page":"559-580","citation":{"chicago":"Klopp, Antje, and Eckhard Steffen. “Fractional Matchings, Component-Factors and Edge-Chromatic Critical Graphs.” <i>Graphs and Combinatorics</i>, 2021, 559–80. <a href=\"https://doi.org/10.1007/s00373-020-02266-6\">https://doi.org/10.1007/s00373-020-02266-6</a>.","ieee":"A. Klopp and E. Steffen, “Fractional Matchings, Component-Factors and Edge-Chromatic Critical Graphs,” <i>Graphs and Combinatorics</i>, pp. 559–580, 2021, doi: <a href=\"https://doi.org/10.1007/s00373-020-02266-6\">10.1007/s00373-020-02266-6</a>.","ama":"Klopp A, Steffen E. Fractional Matchings, Component-Factors and Edge-Chromatic Critical Graphs. <i>Graphs and Combinatorics</i>. Published online 2021:559-580. doi:<a href=\"https://doi.org/10.1007/s00373-020-02266-6\">10.1007/s00373-020-02266-6</a>","apa":"Klopp, A., &#38; Steffen, E. (2021). Fractional Matchings, Component-Factors and Edge-Chromatic Critical Graphs. <i>Graphs and Combinatorics</i>, 559–580. <a href=\"https://doi.org/10.1007/s00373-020-02266-6\">https://doi.org/10.1007/s00373-020-02266-6</a>","short":"A. Klopp, E. Steffen, Graphs and Combinatorics (2021) 559–580.","bibtex":"@article{Klopp_Steffen_2021, title={Fractional Matchings, Component-Factors and Edge-Chromatic Critical Graphs}, DOI={<a href=\"https://doi.org/10.1007/s00373-020-02266-6\">10.1007/s00373-020-02266-6</a>}, journal={Graphs and Combinatorics}, author={Klopp, Antje and Steffen, Eckhard}, year={2021}, pages={559–580} }","mla":"Klopp, Antje, and Eckhard Steffen. “Fractional Matchings, Component-Factors and Edge-Chromatic Critical Graphs.” <i>Graphs and Combinatorics</i>, 2021, pp. 559–80, doi:<a href=\"https://doi.org/10.1007/s00373-020-02266-6\">10.1007/s00373-020-02266-6</a>."},"publication_identifier":{"issn":["0911-0119","1435-5914"]},"publication_status":"published"},{"year":"2021","citation":{"ieee":"E. Steffen and A. Vogel, “Concepts of signed graph coloring,” <i>European J. Combinatorics</i>, vol. 91, 2021.","chicago":"Steffen, Eckhard, and Alexander Vogel. “Concepts of Signed Graph Coloring.” <i>European J. Combinatorics</i> 91 (2021).","ama":"Steffen E, Vogel A. Concepts of signed graph coloring. <i>European J Combinatorics</i>. 2021;91.","apa":"Steffen, E., &#38; Vogel, A. (2021). Concepts of signed graph coloring. <i>European J. Combinatorics</i>, <i>91</i>.","mla":"Steffen, Eckhard, and Alexander Vogel. “Concepts of Signed Graph Coloring.” <i>European J. Combinatorics</i>, vol. 91, 2021.","bibtex":"@article{Steffen_Vogel_2021, title={Concepts of signed graph coloring}, volume={91}, journal={European J. Combinatorics}, author={Steffen, Eckhard and Vogel, Alexander}, year={2021} }","short":"E. Steffen, A. Vogel, European J. Combinatorics 91 (2021)."},"intvolume":"        91","title":"Concepts of signed graph coloring","date_updated":"2023-05-16T10:46:55Z","author":[{"first_name":"Eckhard","id":"15548","full_name":"Steffen, Eckhard","last_name":"Steffen","orcid":"0000-0002-9808-7401"},{"last_name":"Vogel","full_name":"Vogel, Alexander","first_name":"Alexander"}],"date_created":"2019-09-24T14:19:42Z","volume":91,"status":"public","type":"journal_article","publication":"European J. Combinatorics","language":[{"iso":"eng"}],"_id":"13445","external_id":{"arxiv":["1909.09381"]},"user_id":"15540"},{"citation":{"apa":"Lu, Y., Luo, R., Schubert, M., Steffen, E., &#38; Zhang, C.-Q. (2020). Flows on signed graphs without long barbells. <i>SIAM J. Discrete Math</i>, <i>34 (4)</i>, 2166–2187. <a href=\"https://doi.org/10.1137/18M1222818\">https://doi.org/10.1137/18M1222818</a>","mla":"Lu, You, et al. “Flows on Signed Graphs without Long Barbells.” <i>SIAM J. Discrete Math</i>, vol. 34 (4), 2020, pp. 2166–87, doi:<a href=\"https://doi.org/10.1137/18M1222818\">10.1137/18M1222818</a>.","short":"Y. Lu, R. Luo, M. Schubert, E. Steffen, C.-Q. Zhang, SIAM J. Discrete Math 34 (4) (2020) 2166–2187.","bibtex":"@article{Lu_Luo_Schubert_Steffen_Zhang_2020, title={Flows on signed graphs without long barbells}, volume={34 (4)}, DOI={<a href=\"https://doi.org/10.1137/18M1222818\">10.1137/18M1222818</a>}, journal={SIAM J. Discrete Math}, author={Lu, You and Luo, Rong and Schubert, Michael and Steffen, Eckhard and Zhang, Cun-Quan}, year={2020}, pages={2166–2187} }","ama":"Lu Y, Luo R, Schubert M, Steffen E, Zhang C-Q. Flows on signed graphs without long barbells. <i>SIAM J Discrete Math</i>. 2020;34 (4):2166-2187. doi:<a href=\"https://doi.org/10.1137/18M1222818\">10.1137/18M1222818</a>","chicago":"Lu, You, Rong Luo, Michael Schubert, Eckhard Steffen, and Cun-Quan Zhang. “Flows on Signed Graphs without Long Barbells.” <i>SIAM J. Discrete Math</i> 34 (4) (2020): 2166–87. <a href=\"https://doi.org/10.1137/18M1222818\">https://doi.org/10.1137/18M1222818</a>.","ieee":"Y. Lu, R. Luo, M. Schubert, E. Steffen, and C.-Q. Zhang, “Flows on signed graphs without long barbells,” <i>SIAM J. Discrete Math</i>, vol. 34 (4), pp. 2166–2187, 2020, doi: <a href=\"https://doi.org/10.1137/18M1222818\">10.1137/18M1222818</a>."},"page":"2166-2187","year":"2020","doi":"10.1137/18M1222818","title":"Flows on signed graphs without long barbells","date_created":"2019-08-30T12:37:18Z","author":[{"first_name":"You","full_name":"Lu, You","last_name":"Lu"},{"first_name":"Rong","full_name":"Luo, Rong","last_name":"Luo"},{"full_name":"Schubert, Michael","last_name":"Schubert","first_name":"Michael"},{"first_name":"Eckhard","last_name":"Steffen","orcid":"0000-0002-9808-7401","id":"15548","full_name":"Steffen, Eckhard"},{"full_name":"Zhang, Cun-Quan","last_name":"Zhang","first_name":"Cun-Quan"}],"volume":"34 (4)","date_updated":"2023-05-16T10:43:39Z","status":"public","type":"journal_article","publication":"SIAM J. Discrete Math","language":[{"iso":"eng"}],"user_id":"15540","_id":"13114","external_id":{"arxiv":["1908.11004"]}},{"title":"Unions of 1-factors in r-graphs and overfull graphs","date_updated":"2023-05-16T10:53:21Z","author":[{"last_name":"Jin","full_name":"Jin, Ligang","first_name":"Ligang"},{"id":"15548","full_name":"Steffen, Eckhard","last_name":"Steffen","orcid":"0000-0002-9808-7401","first_name":"Eckhard"}],"date_created":"2019-08-26T13:53:51Z","volume":11,"year":"2020","citation":{"ama":"Jin L, Steffen E. Unions of 1-factors in r-graphs and overfull graphs. <i>J of Combinatorics</i>. 2020;11:457-473.","chicago":"Jin, Ligang, and Eckhard Steffen. “Unions of 1-Factors in r-Graphs and Overfull Graphs.” <i>J. of Combinatorics</i> 11 (2020): 457–73.","ieee":"L. Jin and E. Steffen, “Unions of 1-factors in r-graphs and overfull graphs,” <i>J. of Combinatorics</i>, vol. 11, pp. 457–473, 2020.","mla":"Jin, Ligang, and Eckhard Steffen. “Unions of 1-Factors in r-Graphs and Overfull Graphs.” <i>J. of Combinatorics</i>, vol. 11, 2020, pp. 457–73.","bibtex":"@article{Jin_Steffen_2020, title={Unions of 1-factors in r-graphs and overfull graphs}, volume={11}, journal={J. of Combinatorics}, author={Jin, Ligang and Steffen, Eckhard}, year={2020}, pages={457–473} }","short":"L. Jin, E. Steffen, J. of Combinatorics 11 (2020) 457–473.","apa":"Jin, L., &#38; Steffen, E. (2020). Unions of 1-factors in r-graphs and overfull graphs. <i>J. of Combinatorics</i>, <i>11</i>, 457–473."},"page":"457-473","intvolume":"        11","language":[{"iso":"eng"}],"_id":"12971","external_id":{"arxiv":["1509.01823"]},"user_id":"15540","status":"public","type":"journal_article","publication":"J. of Combinatorics"},{"date_created":"2020-05-05T15:38:22Z","author":[{"first_name":"Gregor","id":"107","full_name":"Engels, Gregor","last_name":"Engels"},{"full_name":"Maier, Günter W.","last_name":"Maier","first_name":"Günter W."},{"first_name":"Sonja K.","last_name":"Ötting","full_name":"Ötting, Sonja K."},{"first_name":"Eckhard","last_name":"Steffen","id":"15548","full_name":"Steffen, Eckhard"},{"first_name":"Alexander","last_name":"Teetz","full_name":"Teetz, Alexander"}],"date_updated":"2022-01-06T06:52:59Z","publisher":"Springer Verlag","doi":"10.1007/978-3-662-49266-6_16","title":"Gerechtigkeit in flexiblen Arbeits- und Managementprozessen","publication_identifier":{"isbn":["9783662492659","9783662492666"]},"publication_status":"published","page":"221-231","citation":{"ama":"Engels G, Maier GW, Ötting SK, Steffen E, Teetz A. Gerechtigkeit in flexiblen Arbeits- und Managementprozessen. In: Wischmann S, Hartmann EA, eds. <i>Zukunft Der Arbeit – Eine Praxisnahe Betrachtung</i>. Berlin, Heidelberg: Springer Verlag; 2018:221-231. doi:<a href=\"https://doi.org/10.1007/978-3-662-49266-6_16\">10.1007/978-3-662-49266-6_16</a>","chicago":"Engels, Gregor, Günter W. Maier, Sonja K. Ötting, Eckhard Steffen, and Alexander Teetz. “Gerechtigkeit in Flexiblen Arbeits- Und Managementprozessen.” In <i>Zukunft Der Arbeit – Eine Praxisnahe Betrachtung</i>, edited by Steffen Wischmann and Ernst Andreas Hartmann, 221–31. Berlin, Heidelberg: Springer Verlag, 2018. <a href=\"https://doi.org/10.1007/978-3-662-49266-6_16\">https://doi.org/10.1007/978-3-662-49266-6_16</a>.","ieee":"G. Engels, G. W. Maier, S. K. Ötting, E. Steffen, and A. Teetz, “Gerechtigkeit in flexiblen Arbeits- und Managementprozessen,” in <i>Zukunft der Arbeit – Eine praxisnahe Betrachtung</i>, S. Wischmann and E. A. Hartmann, Eds. Berlin, Heidelberg: Springer Verlag, 2018, pp. 221–231.","mla":"Engels, Gregor, et al. “Gerechtigkeit in Flexiblen Arbeits- Und Managementprozessen.” <i>Zukunft Der Arbeit – Eine Praxisnahe Betrachtung</i>, edited by Steffen Wischmann and Ernst Andreas Hartmann, Springer Verlag, 2018, pp. 221–31, doi:<a href=\"https://doi.org/10.1007/978-3-662-49266-6_16\">10.1007/978-3-662-49266-6_16</a>.","bibtex":"@inbook{Engels_Maier_Ötting_Steffen_Teetz_2018, place={Berlin, Heidelberg}, title={Gerechtigkeit in flexiblen Arbeits- und Managementprozessen}, DOI={<a href=\"https://doi.org/10.1007/978-3-662-49266-6_16\">10.1007/978-3-662-49266-6_16</a>}, booktitle={Zukunft der Arbeit – Eine praxisnahe Betrachtung}, publisher={Springer Verlag}, author={Engels, Gregor and Maier, Günter W. and Ötting, Sonja K. and Steffen, Eckhard and Teetz, Alexander}, editor={Wischmann, Steffen and Hartmann, Ernst AndreasEditors}, year={2018}, pages={221–231} }","short":"G. Engels, G.W. Maier, S.K. Ötting, E. Steffen, A. Teetz, in: S. Wischmann, E.A. Hartmann (Eds.), Zukunft Der Arbeit – Eine Praxisnahe Betrachtung, Springer Verlag, Berlin, Heidelberg, 2018, pp. 221–231.","apa":"Engels, G., Maier, G. W., Ötting, S. K., Steffen, E., &#38; Teetz, A. (2018). Gerechtigkeit in flexiblen Arbeits- und Managementprozessen. In S. Wischmann &#38; E. A. Hartmann (Eds.), <i>Zukunft der Arbeit – Eine praxisnahe Betrachtung</i> (pp. 221–231). Berlin, Heidelberg: Springer Verlag. <a href=\"https://doi.org/10.1007/978-3-662-49266-6_16\">https://doi.org/10.1007/978-3-662-49266-6_16</a>"},"year":"2018","place":"Berlin, Heidelberg","department":[{"_id":"66"}],"user_id":"57458","_id":"16938","language":[{"iso":"eng"}],"publication":"Zukunft der Arbeit – Eine praxisnahe Betrachtung","type":"book_chapter","status":"public","editor":[{"first_name":"Steffen","last_name":"Wischmann","full_name":"Wischmann, Steffen"},{"full_name":"Hartmann, Ernst Andreas","last_name":"Hartmann","first_name":"Ernst Andreas"}]},{"issue":"4","year":"2018","intvolume":"        25","citation":{"chicago":"Fiol, M. A., Guiseppe Mazzuoccolo, and Eckhard Steffen. “Measures of Edge-Uncolorability of Cubic Graphs.” <i>The Electronic Journal of Combinatorics</i> 25, no. 4 (2018).","ieee":"M. A. Fiol, G. Mazzuoccolo, and E. Steffen, “Measures of Edge-Uncolorability of Cubic Graphs,” <i>The Electronic Journal of Combinatorics</i>, vol. 25, no. 4, 2018.","ama":"Fiol MA, Mazzuoccolo G, Steffen E. Measures of Edge-Uncolorability of Cubic Graphs. <i>The Electronic Journal of Combinatorics</i>. 2018;25(4).","bibtex":"@article{Fiol_Mazzuoccolo_Steffen_2018, title={Measures of Edge-Uncolorability of Cubic Graphs}, volume={25}, number={4P4.54}, journal={The Electronic Journal of Combinatorics}, author={Fiol, M. A. and Mazzuoccolo, Guiseppe and Steffen, Eckhard}, year={2018} }","short":"M.A. Fiol, G. Mazzuoccolo, E. Steffen, The Electronic Journal of Combinatorics 25 (2018).","mla":"Fiol, M. A., et al. “Measures of Edge-Uncolorability of Cubic Graphs.” <i>The Electronic Journal of Combinatorics</i>, vol. 25, no. 4, P4.54, 2018.","apa":"Fiol, M. A., Mazzuoccolo, G., &#38; Steffen, E. (2018). Measures of Edge-Uncolorability of Cubic Graphs. <i>The Electronic Journal of Combinatorics</i>, <i>25</i>(4)."},"date_updated":"2022-01-06T06:50:30Z","volume":25,"date_created":"2019-06-05T09:59:10Z","author":[{"last_name":"Fiol","full_name":"Fiol, M. A.","first_name":"M. A."},{"first_name":"Guiseppe","last_name":"Mazzuoccolo","full_name":"Mazzuoccolo, Guiseppe"},{"first_name":"Eckhard","last_name":"Steffen","id":"15548","full_name":"Steffen, Eckhard"}],"title":"Measures of Edge-Uncolorability of Cubic Graphs","publication":"The Electronic Journal of Combinatorics","type":"journal_article","abstract":[{"lang":"eng","text":"There are many hard conjectures in graph theory, like Tutte's 5-flow conjecture, and the 5-cycle double cover conjecture, which would be true in general if they would be true for cubic graphs. Since most of them are trivially true for 3-edge-colorable cubic graphs, cubic graphs which are not 3-edge-colorable, often called snarks, play a key role in this context. Here, we survey parameters measuring how far apart a non 3-edge-colorable graph is from being 3-edge-colorable. We study their interrelation and prove some new results. Besides getting new insight into the structure of snarks, we show that such  measures give partial results with respect to these important conjectures. The paper closes with a list of open problems and conjectures."}],"status":"public","_id":"10129","department":[{"_id":"542"}],"user_id":"15540","keyword":["Cubic graph","Tait coloring","Snark","Boole coloring","Berge's conjecture","Tutte's 5-flow conjecture"],"article_number":"P4.54","article_type":"original","language":[{"iso":"eng"}]},{"date_updated":"2022-01-06T06:50:30Z","date_created":"2019-06-05T10:03:06Z","author":[{"first_name":"Edita","last_name":"Rollová","full_name":"Rollová, Edita"},{"full_name":"Schubert, Michael","last_name":"Schubert","first_name":"Michael"},{"last_name":"Steffen","full_name":"Steffen, Eckhard","id":"15548","first_name":"Eckhard"}],"volume":25,"title":"Flows in Signed Graphs with Two Negative Edges ","doi":"10.37236/4458","publication_status":"published","issue":"2","year":"2018","citation":{"apa":"Rollová, E., Schubert, M., &#38; Steffen, E. (2018). Flows in Signed Graphs with Two Negative Edges . <i>The Electronic Journal of Combinatorics</i>, <i>25</i>(2). <a href=\"https://doi.org/10.37236/4458\">https://doi.org/10.37236/4458</a>","bibtex":"@article{Rollová_Schubert_Steffen_2018, title={Flows in Signed Graphs with Two Negative Edges }, volume={25}, DOI={<a href=\"https://doi.org/10.37236/4458\">10.37236/4458</a>}, number={2P2.40}, journal={The Electronic Journal of Combinatorics}, author={Rollová, Edita and Schubert, Michael and Steffen, Eckhard}, year={2018} }","short":"E. Rollová, M. Schubert, E. Steffen, The Electronic Journal of Combinatorics 25 (2018).","mla":"Rollová, Edita, et al. “Flows in Signed Graphs with Two Negative Edges .” <i>The Electronic Journal of Combinatorics</i>, vol. 25, no. 2, P2.40, 2018, doi:<a href=\"https://doi.org/10.37236/4458\">10.37236/4458</a>.","ama":"Rollová E, Schubert M, Steffen E. Flows in Signed Graphs with Two Negative Edges . <i>The Electronic Journal of Combinatorics</i>. 2018;25(2). doi:<a href=\"https://doi.org/10.37236/4458\">10.37236/4458</a>","chicago":"Rollová, Edita, Michael Schubert, and Eckhard Steffen. “Flows in Signed Graphs with Two Negative Edges .” <i>The Electronic Journal of Combinatorics</i> 25, no. 2 (2018). <a href=\"https://doi.org/10.37236/4458\">https://doi.org/10.37236/4458</a>.","ieee":"E. Rollová, M. Schubert, and E. Steffen, “Flows in Signed Graphs with Two Negative Edges ,” <i>The Electronic Journal of Combinatorics</i>, vol. 25, no. 2, 2018."},"intvolume":"        25","_id":"10130","user_id":"15540","article_number":"P2.40","language":[{"iso":"eng"}],"type":"journal_article","publication":"The Electronic Journal of Combinatorics","status":"public"},{"date_updated":"2022-01-06T06:50:30Z","volume":38,"date_created":"2019-06-05T10:08:41Z","author":[{"last_name":"Jin","full_name":"Jin, Ligang","first_name":"Ligang"},{"first_name":"Giuseppe","full_name":"Mazzuoccolo, Giuseppe","last_name":"Mazzuoccolo"},{"last_name":"Steffen","full_name":"Steffen, Eckhard","id":"15548","first_name":"Eckhard"}],"title":"Cores, joins  and the Fano-flow conjectures","doi":"10.7151/dmgt.1999","publication_identifier":{"issn":["1234-3099","2083-5892"]},"publication_status":"published","year":"2018","page":"165-175","intvolume":"        38","citation":{"ama":"Jin L, Mazzuoccolo G, Steffen E. Cores, joins  and the Fano-flow conjectures. <i>Discussiones Mathematicae Graph Theory</i>. 2018;38:165-175. doi:<a href=\"https://doi.org/10.7151/dmgt.1999\">10.7151/dmgt.1999</a>","chicago":"Jin, Ligang, Giuseppe Mazzuoccolo, and Eckhard Steffen. “Cores, Joins  and the Fano-Flow Conjectures.” <i>Discussiones Mathematicae Graph Theory</i> 38 (2018): 165–75. <a href=\"https://doi.org/10.7151/dmgt.1999\">https://doi.org/10.7151/dmgt.1999</a>.","ieee":"L. Jin, G. Mazzuoccolo, and E. Steffen, “Cores, joins  and the Fano-flow conjectures,” <i>Discussiones Mathematicae Graph Theory</i>, vol. 38, pp. 165–175, 2018.","apa":"Jin, L., Mazzuoccolo, G., &#38; Steffen, E. (2018). Cores, joins  and the Fano-flow conjectures. <i>Discussiones Mathematicae Graph Theory</i>, <i>38</i>, 165–175. <a href=\"https://doi.org/10.7151/dmgt.1999\">https://doi.org/10.7151/dmgt.1999</a>","mla":"Jin, Ligang, et al. “Cores, Joins  and the Fano-Flow Conjectures.” <i>Discussiones Mathematicae Graph Theory</i>, vol. 38, 2018, pp. 165–75, doi:<a href=\"https://doi.org/10.7151/dmgt.1999\">10.7151/dmgt.1999</a>.","short":"L. Jin, G. Mazzuoccolo, E. Steffen, Discussiones Mathematicae Graph Theory 38 (2018) 165–175.","bibtex":"@article{Jin_Mazzuoccolo_Steffen_2018, title={Cores, joins  and the Fano-flow conjectures}, volume={38}, DOI={<a href=\"https://doi.org/10.7151/dmgt.1999\">10.7151/dmgt.1999</a>}, journal={Discussiones Mathematicae Graph Theory}, author={Jin, Ligang and Mazzuoccolo, Giuseppe and Steffen, Eckhard}, year={2018}, pages={165–175} }"},"_id":"10132","department":[{"_id":"542"}],"user_id":"15540","language":[{"iso":"eng"}],"publication":"Discussiones Mathematicae Graph Theory","type":"journal_article","status":"public"},{"author":[{"id":"15548","full_name":"Steffen, Eckhard","last_name":"Steffen","first_name":"Eckhard"}],"date_created":"2019-06-07T08:36:36Z","volume":71,"date_updated":"2022-01-06T06:50:31Z","title":"Approximating Vizing’s independence number conjecture","issue":"1","publication_status":"published","citation":{"apa":"Steffen, E. (2018). Approximating Vizing’s independence number conjecture. <i>Australasian Journal of Combinatorics</i>, <i>71</i>(1), 153–160.","bibtex":"@article{Steffen_2018, title={Approximating Vizing’s independence number conjecture}, volume={71}, number={1}, journal={Australasian Journal of Combinatorics}, author={Steffen, Eckhard}, year={2018}, pages={153–160} }","mla":"Steffen, Eckhard. “Approximating Vizing’s Independence Number Conjecture.” <i>Australasian Journal of Combinatorics</i>, vol. 71, no. 1, 2018, pp. 153–60.","short":"E. Steffen, Australasian Journal of Combinatorics 71 (2018) 153–160.","chicago":"Steffen, Eckhard. “Approximating Vizing’s Independence Number Conjecture.” <i>Australasian Journal of Combinatorics</i> 71, no. 1 (2018): 153–60.","ieee":"E. Steffen, “Approximating Vizing’s independence number conjecture,” <i>Australasian Journal of Combinatorics</i>, vol. 71, no. 1, pp. 153–160, 2018.","ama":"Steffen E. 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