B.A. Dubrovin, A.T. Fomenko, S.P. Novikov ; translated by Robert G. Burns
Springer-Verlagc1984Graduate texts in mathematics
93 . { Modern geometry : methods and applications / B.A. Dubrovin, A.T. Fomenko, S.P. Novikov ; translated by Robert G. Burns } ; pt. 1 , Springer series in Soviet mathematics