00739nam a22002291 45000010008000000030008000080050017000160080041000330100017000740400031000910410011001220500016001330820016001491000025001652400069001902450079002592600042003383000022003804400050004026500028004527000029004804528162BD-DhUL20140826095945.0850621s1948 nyu 000 0 eng  a 48003072  aDLC/ICUcICUdDLCdBD-DhUL1 aengger00aQA401b.H6300a512.82bHOI1 aHopf, Ludwig,d1884-10aEinführung in die differentialgleichungen der physik.lEnglish10aIntroduction to the differential equations of physics;ctr. by Walter Nef. aNew York,bDover Publications,c1948. av, 154 p.c17 cm. 5a[The Dover series in mathematics and physics] 0aDifferential equations.1 aNef, Walter,d1919-etr.