00326nam a2200109Ia 4500008004100000082001500041100001500056245004300071260003700114630001800151650004700169211109s9999||||xx |||||||||||||| ||und||  a530bCOU-M  aCourant, R 0aMethods of Mathematical Physics [vol1]  bVikas PublishingaNew Delic1953  xGENERAL STACK  aNatural SciencesvPhysicsxSciencesPhysics