TY - BOOK AU - Doebner, H.D. [Ed.] TI - Differential geometric methods in mathematical physics: proceedings of the International conference held at the Technical University of clausthal,Germany,July,1978 T2 - Lecture notes in physics;139 SN - 3540105786 PY - 1981/// CY - Berlin PB - Springer-Verlag KW - Mathematical methods-Physicist KW - Differential equations KW - Non-linear methods ER -