00413nam 2204076 45000010005000000030023000050050009000280080041000370820008000780720027000860200018001131000015001312600027001462450035001736500027002086500010002354076StarLibrary Marc Built20180420201711 ||||| |||||||||||amh  a515 adifferential equations a0-387-90327-5 aFritz yhon bSPRINGER-VERLAG c1978 aPartial Differential equatrons adifferential equations atitle