00337nam a2200121Ia 4500008004100000040003800041100002100079245003600100250000600136260004100142300001600183653001600199211214s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aFriedrichs , K O 0aSupersonic flow and shock waves  a1  bINTERSCIENCE PUBLISHERaLondonc1948  axvi,434p p.  aMathematics