000			00428nam a2200133Ia 4500
008			211119s9999||||xx |||||||||||||| ||und||
082			_a5.82 _bCOU-M
100			_aCoutinho, S C
245		0	_aMathematics of Ciphers
260			_bUniversities Press _aHyderabad _c2003
300			_axv+19
650			_acomputer science information & general works _vComputer programming, programs & dataMathematics _xGeneral Stack
942			_cBOOK
999			_c106623 _d106623