"Modern geometry-methods & applications. Part 1: The geometry of surfaces, transformation groups,and fields"
DUBROVIN(B A) et al.
"Modern geometry-methods & applications. Part 1: The geometry of surfaces, transformation groups,and fields" - New York Springer 1984 - xv p. + 464
"Modern geometry-methods & applications. Part 1: The geometry of surfaces, transformation groups,and fields" - New York Springer 1984 - xv p. + 464