00317nam a2200121Ia 4500008004100000082001500041100002200056245003900078260004200117300001200159942000700171999001700178190709s9999    xx            000 0 und d  a517.8C475C  aChurchill, Ruel V 0aComplex variables and applications  aTokyobMcgraw Hill Book Companyc1960  aix, 297  cBK  c36992d36991