000 00271nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aComputer Bulletin
260 _aBritish Computer Society
_bCambridge
_c1 Jan-31 Dec,1990
362 _a02-Feb
_b01-Oct
942 _2ddc
_cJ
999 _c189469
_d189469