@article{105262, author = {Milan Koman}, title = {On nonplanar graphs with the minimum number of vertices and a given girth}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {011}, year = {1970}, pages = {9-17}, zbl = {0195.25802}, mrnumber = {0265199}, language = {en}, url = {http://dml.mathdoc.fr/item/105262} }
Koman, Milan. On nonplanar graphs with the minimum number of vertices and a given girth. Commentationes Mathematicae Universitatis Carolinae, Tome 011 (1970) pp. 9-17. http://gdmltest.u-ga.fr/item/105262/
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