{"citation":{"apa":"Steffen, E., &#38; Vogel, A. (2021). Concepts of signed graph coloring. <i>European J. Combinatorics</i>, <i>91</i>.","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.","short":"E. Steffen, A. Vogel, European J. Combinatorics 91 (2021).","ieee":"E. Steffen and A. Vogel, “Concepts of signed graph coloring,” <i>European J. Combinatorics</i>, vol. 91, 2021.","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} }"},"user_id":"15540","publication":"European J. Combinatorics","intvolume":"        91","language":[{"iso":"eng"}],"date_updated":"2023-05-16T10:46:55Z","date_created":"2019-09-24T14:19:42Z","author":[{"last_name":"Steffen","orcid":"0000-0002-9808-7401","full_name":"Steffen, Eckhard","first_name":"Eckhard","id":"15548"},{"last_name":"Vogel","full_name":"Vogel, Alexander","first_name":"Alexander"}],"year":"2021","type":"journal_article","_id":"13445","volume":91,"title":"Concepts of signed graph coloring","status":"public","external_id":{"arxiv":["1909.09381"]}}