article published Gunnar Brinkmann author Eckhard Steffen author 15548 1997 eng 188 193 -197 G. Brinkmann and E. Steffen, “3- and 4-critical graphs of small even order,” <i>Discrete Mathematics</i>, vol. 188, pp. 193–197, 1997. Brinkmann, Gunnar, and Eckhard Steffen. “3- and 4-Critical Graphs of Small Even Order.” <i>Discrete Mathematics</i> 188 (1997): 193–97. Brinkmann G, Steffen E. 3- and 4-critical graphs of small even order. <i>Discrete Mathematics</i>. 1997;188:193-197. G. Brinkmann, E. Steffen, Discrete Mathematics 188 (1997) 193–197. Brinkmann, Gunnar, and Eckhard Steffen. “3- and 4-Critical Graphs of Small Even Order.” <i>Discrete Mathematics</i>, vol. 188, 1997, pp. 193–97. @article{Brinkmann_Steffen_1997, title={3- and 4-critical graphs of small even order}, volume={188}, journal={Discrete Mathematics}, author={Brinkmann, Gunnar and Steffen, Eckhard}, year={1997}, pages={193–197} } Brinkmann, G., &#38; Steffen, E. (1997). 3- and 4-critical graphs of small even order. <i>Discrete Mathematics</i>, <i>188</i>, 193–197. 101962019-06-07T12:57:46Z2022-01-06T06:50:31Z