@article{1183529379, author = {Tutte, W. T.}, title = {On the enumeration of planar maps}, journal = {Bull. Amer. Math. Soc.}, volume = {74}, number = {6}, year = {1968}, pages = { 64-74}, language = {en}, url = {http://dml.mathdoc.fr/item/1183529379} }
Tutte, W. T. On the enumeration of planar maps. Bull. Amer. Math. Soc., Tome 74 (1968) no. 6, pp. 64-74. http://gdmltest.u-ga.fr/item/1183529379/