TY - BOOK AU - Lando, Sergei K AU - Zvonkin, Alexander K TI - Graphs on surfaces and their applications T2 - Encyclopaedia of mathematical sciences SN - 3-540-00203-0 U1 - 511.5/LAN PY - 2004/// CY - Berlin PB - Springer-Verlag KW - Surfaces KW - Graph theory KW - Mathematics ER -