TY  - BOOK
AU  - Dubrovin,B.A.,et al
TI  - Modern geometry- methods & applications part I: geometry of surfaces, transformation groups & fields
T2  - Graduate texts in mathematics 93
SN  - 3540908722
U1  - 8.01+8.05 
PY  - 1984///
CY  - New York
PB  - Springer
ER  -