00282nam a2200121Ia 4500082001900000100001800019245002600037260003400063300001500097490003800112500000500150700000500155  a515.9bM958.SH  aMuller, Claus  aSpherical harmonicsb  aBerlinbSpringer-Verlagc1966  a45p. Bibl.  aLecture notes in Mathematicsv 17  a  a