00313nam a2200133Ia 4500008004100000040001700041041001200058082001500070100002100085245002500106250001200131260002500143300001100168230917s9999||||xx |||||||||||||| ||und||  e110172aMAIN  aEnglish  a005.1 S55S  aSommerville, Ian 0aSoftware engineering  a7th ed.  aDelhibPearsonc2004  a781 p.