TY - BOOK AU - Courant, Richard AU - Hilbert, D. TI - METHODEN DER MATHEMATISCHEN PHYSIK U1 - 517 PY - 1931/// CY - Berlin PB - J. Springer KW - Mathematical Physics N1 - Photo-Lithoprint Eproduction [1943] Distributors : Interscience Publishers, Inc., New York ER -