@article{10183,
  author       = {{Steffen, Eckhard}},
  journal      = {{Discrete Mathematics}},
  pages        = {{289 -- 291}},
  title        = {{{A refinement of Vizing's theorem}}},
  volume       = {{218}},
  year         = {{2000}},
}

@article{10186,
  author       = {{Carstens, Hans Georg and Dinski, Thomas and Steffen, Eckhard}},
  journal      = {{Discrete Applied Mathematics}},
  pages        = {{401--411}},
  title        = {{{Reductions of Symmetry configurations n3}}},
  volume       = {{99}},
  year         = {{2000}},
}

@article{10187,
  author       = {{Steffen, Eckhard}},
  journal      = {{Discrete Mathematics}},
  pages        = {{291--292}},
  title        = {{{Counterexamples to a conjecture about Petersen-minors in supersnarks}}},
  volume       = {{207}},
  year         = {{1999}},
}

@article{10189,
  author       = {{Steffen, Eckhard}},
  journal      = {{Graphs Comb.}},
  pages        = {{ 473--480}},
  title        = {{{Non-bicritical critical snarks}}},
  volume       = {{15}},
  year         = {{1999}},
}

@article{10190,
  author       = {{Grünewald, Stefan and Steffen, Eckhard}},
  journal      = {{Discuss. Math. Graph Theory}},
  pages        = {{5--11}},
  title        = {{{Cyclically 5-edge connected non-bicritical critical snarks}}},
  volume       = {{19}},
  year         = {{1999}},
}

@article{10191,
  author       = {{Grünewald, Stefan and Steffen, Eckhard}},
  journal      = {{J. Graph Theory}},
  pages        = {{27 --36}},
  title        = {{{Chromatic-index-critical graphs of even order}}},
  volume       = {{30}},
  year         = {{1999}},
}

@article{10193,
  author       = {{Brinkmann, Gunnar and Steffen, Eckhard}},
  journal      = {{Ars Combinatoria}},
  pages        = {{292 -- 296}},
  title        = {{{Snarks and reducibility}}},
  volume       = {{50}},
  year         = {{1998}},
}

@article{10194,
  author       = {{Brinkmann, Gunnar and Steffen, Eckhard}},
  journal      = {{European J. Combinatorics}},
  pages        = {{889 -- 900}},
  title        = {{{Chromatic-index-critical graphs of Orders 11 and 12}}},
  volume       = {{19}},
  year         = {{1998}},
}

@article{10195,
  author       = {{Steffen, Eckhard}},
  journal      = {{Discrete Mathematics}},
  pages        = {{183 -- 203 (}},
  title        = {{{Classification and characterizations of snarkse}}},
  volume       = {{188}},
  year         = {{1998}},
}

@article{10196,
  author       = {{Brinkmann, Gunnar and Steffen, Eckhard}},
  journal      = {{Discrete Mathematics}},
  pages        = {{ 193 --197}},
  title        = {{{3- and 4-critical graphs of small even order}}},
  volume       = {{188}},
  year         = {{1997}},
}

@article{10197,
  author       = {{Steffen, Eckhard}},
  journal      = {{Discrete Mathematics}},
  pages        = {{315}},
  title        = {{{Counterexamples to a conjecture about bottlenecks in non-Tait-colourable cubic graphs}}},
  volume       = {{161}},
  year         = {{1996}},
}

@article{10198,
  author       = {{Steffen, Eckhard and Zhu, Xuding}},
  journal      = {{Combinatorica}},
  pages        = {{439--448}},
  title        = {{{Star chromatic numbers of graphs}}},
  volume       = {{16}},
  year         = {{1996}},
}

@article{10199,
  author       = {{Steffen, Eckhard}},
  journal      = {{J. Graph Theory}},
  pages        = {{309 --319}},
  title        = {{{Tutte's 5-flow conjecture for graphs of non-orientable genus 5}}},
  volume       = {{22}},
  year         = {{1996}},
}

@inproceedings{10201,
  author       = {{Steffen, Eckhard}},
  booktitle    = {{Computer Science Logic }},
  editor       = {{Börger, E.}},
  pages        = {{339 -- 352}},
  publisher    = {{Springer Berlin Heidelberg}},
  title        = {{{Complexity results for the default- and autoepistemic logic}}},
  volume       = {{626}},
  year         = {{1992}},
}