00622nam a2200193 a 450000500170000000800410001704100080005808200110006610000320007724500730010926400260018230000110020865000250021965000120024470000300025694200070028699900170029395201180031020260717090948.0260717s1975    ii            000 0 eng d  aeng04a530.151 aCourant, Richard, 1888-197210aMethods of mathematical physics vol.I /cCourant, Richard, 1888-1972 1bWiley Eastern,c1975.  a561 p. 4aMathematical physics 4aPhysics1 aHilbert, David, 1862-1943  cBK  c20096d20096  001040708DCaBKBCLbBKBCLd1978-10-20g27.00l0o530.15 COUp10090r2026-07-17 09:09:48v27.00w2026-07-17yBK