TY - BOOK AU - Conference on "Geometric Methods in Mathematical Physics", University of Lowell Massachusetts, March 19-23, 1979. AU - Kaiser, G. AU - Marsden, J. E. TI - Geometric methods in mathematical physics: ; proceedings of an NSF-CBMS conference U1 - 530.1 PY - 1980/// CY - Berlin PB - Springer-Verlag ER -