Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1995__45_3_a2, author = {Tk\'a\v{c}, Michal}, title = {On longest circuits in certain non-regular planar graphs}, journal = {Mathematica slovaca}, pages = {235--242}, publisher = {mathdoc}, volume = {45}, number = {3}, year = {1995}, mrnumber = {1361816}, zbl = {0852.05057}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1995__45_3_a2/} }
Tkáč, Michal. On longest circuits in certain non-regular planar graphs. Mathematica slovaca, Tome 45 (1995) no. 3, pp. 235-242. http://geodesic.mathdoc.fr/item/MASLO_1995__45_3_a2/