TY - BOOK AU - Dubrovin, B.A AU - Fomenko, A.T TI - Modern geometry methods and applications: part I. the geometry of surfaces,transformation groups and fields T2 - Graduate texts in mathematics SN - 0387908722 U1 - 516 PY - 1984/// CY - New York PB - Springer-Verlag KW - Geomentry ER -