title = {A new 3-color criterion for planar graphs},
author = {Krzysztof Diks and {\L}ukasz Kowalik and Maciej Kurowski},
booktitle = {Proc. 28th Int. Worksh. Graph-Theoretic Concepts in Computer Science (WG 2002)},
number = {2573},
editor = {Ludek Kucera},
series = {Lecture Notes in Computer Science},
publisher = {Springer-Verlag},
pages = {138--149},
year = {2002}}

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