00366nam a2200133Ia 4500008004100000020000900041040001600050041001200066082001600078100001500094245007600109260003600185300001100221230917s9999||||xx |||||||||||||| ||und||  cPOU6  e21783aMAIN  aEnglish  a515.35 722S  aD L Colton 0aSolution of boundary value problems by the method of integral operators  aLondonbPitman Publishingc1976  a148 p.