00839nam0-22003011i-450-99000668393040332120001010000668393FED01000668393(Aleph)000668393FED0100066839320001010d--------km-y0itay50------baitay-------001yySymmetric designsan algebraic approachEric S. LanderCambridgeUniversity Press1983XII, 306 p., 23 cmLondon Mathematical Society lecture note series74VI ELander,Eric S.56992ITUNINARICAUNIMARCBK990006683930403321COLLEZ. 911 (74)24170FSPBCFSPBCSymmetric Designs381980UNINAGEN01