000			00280nam a2200097Ia 4500
008			180926s9999 xx 000 0 und d
100			_aSTALLINGS WILLIAM
245			_aDATA AND COMPUTER COMMUNICATIONS (R)
500			_aCOMMUNICATIONS ; COMPUTER ; DATA
650			_aGeneralities(000)
999			_c319699 _d319699