00430nam a2200157Ia 450000100060000000800410000602000150004704000130006208200210007510000200009624500710011626000410018730000110022854600070023965000260024655715140506s9999    xx            000 0 und d  a0125258569  cPK-LaUMT  aMAL 515.5bOLV-I  aOlver, F. W. J.  aIntroduction to asymptotics and special functionscOlver, F. W. J.  aNew York,USA:bAcademic Press,c1974  a297 p.  aEN  aAsymptotic expansions