01033nam0-22003491i-450-99000025161040332120100208160157.03-540-06035-9000025161FED01000025161(Aleph)000025161FED0100002516120020821d1972----km-y0itay50------baengy-------001yyCombinatoricsroom squares, sum-free sets, Hadamard matrices[by] W. D. Wallis, Anne Penfold Street, Jennifer Seberry WallisBerlin ; New YorkSpringer-Verlag1972508 p.ill.26 cmLecture notes in mathematics292Analisi funzionale510.8Wallis,Walter DennisStreet,Anne PenfoldSeberry,JenniferITUNINARICAUNIMARCBK99000025161040332109 006-035828/LDINAEC-20-(29212843MA1DINAEMA1UNINA