00325nam a2200121Ia 4500008004100000040001500041041001200056082001600068100001900084245004800103260003600151300001600187230917s9999||||xx |||||||||||||| ||und||  e4900aMAIN  aEnglish  a541.28 S15S  aSadlej, Joanna 0aSemi-empirical methods of quantum chemistry  aChichesterbEllis-Horwoodc1985  axiv, 386 p.