00652nam 2200205 450 2108326http://id.bnportugal.gov.pt/bib/porbase/21083260-471-50439-4UALLC_BC_126.iso/16-03-2009/494819950505d1962 k y0pory0103 baengUSMethods of mathematical physicsR. Courant, D. HilbertNew YorkJohn Wiley & Sonscop. 1962vol.23 cmWiley classics library2º vol.: Partial differential equations - 830 p.51.517BNporCourantR.070HilbertD.070PTUALLCRPC