000 00286nam a2200121Ia 4500
008 160710s1991 xx 000 0 und d
082 _a512 LAX
100 _aLAX
245 _aMODERN ALGEBRA & DISCRETE STRUCTURES
260 _bH.C.PUBLICATION
_c1991
300 _a390
942 _2ddc
_cB
999 _c48742
_d48742