%0 Journal Article %A Liskovets, V. A. %A Walsh, T. R. S. %T The Enumeration of Non-Isomorphic 2-Connected Planar Maps %J Canadian journal of mathematics %D 1983 %P 417-435 %V 35 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1983-023-5/ %R 10.4153/CJM-1983-023-5 %F 10_4153_CJM_1983_023_5