00534nam a2200181 a 450000500170000008200230001710000180004024500680005826000220012630000150014869000140016369000250017770000220020296400250022499700180024999900170026795200680028420251203090947.0  a530.15525,bD, bit  aBitsadze, A.V  aCollection of problems on the equations of mathematical physics  aMoscowbMirc1980  a334p, 22cm  aEquations  aMathematical physics  aKalinichenko, D.F  bEngc100de010fg_  a40977 LIBSC C  c24925d24925  00104070aPUbPUd1998-04-08l0o530.15525, D, bitp40977yBK