000			00331nam a2200145Ia 4500
008			161018s9999 xx 000 0 und d
020			_a9788131761663
100			_aWilliam Stallings
245			_aCryptography And Network Security
250			_aV/2013
260			_bPearson
300			_a743p.
490			_a17451
999			_c17451 _d17451
942	0	0	_02