00337nam a2200121Ia 4500008004100000040001800041041001200059082001800071100002100089245006500110260002900175300001100204230917s9999||||xx |||||||||||||| ||und||  e5015100aMAIN  aEnglish  a549.125 B388T  aBecker, Ralph .S 0aTheory and interpretation of fluoresence and phosphorescence  aLondonbJohn Wileyc1969  a283 p.