000			00306nam a2200109Ia 4500
008			170707s9999 xx 000 0 und d
050			_a005.74 V934
100			_a"Vossen, Gottfried"
245		0	_a"Data models, database languages and database management systems"
260			_c1991
942			_2lcc _cBK _kCirc.
999			_c12725 _d12725