00274nam a2200121Ia 4500082002000000100002000020245006000040250000800100260002400108300001000132500000500142700000500147  a530.1bAr781.MM  aArsenin, V. Ya.  aMethods of mathematical physics and special functionsb  a2nd  aMockbebNAUKAc1964  a383p.  a  a