Текст томруулах:    
Hermann, Robert

The geometry of non-linear differential equations, Bäcklund transformations, and solitons Part B - Brookline MATH SCI PRESS 1977 - 325 - Interdisciplinary mathematics V. 14 .

ГФ 17195


Англи хэл дээр,

0-915692-18-X

differential equations geometry bäcklund transformations solitons