00573nam a2200157Ia 4500 260316b |||||||| |||| 00| 0 eng d 511.6 W214.CR Wallis, W. D. 18946 Combinatorics ; room squares, sum-free sets, hadamard matrices / Berlin: Springer-Verlag, 1972 vi, 508p. Lecture notes in Mathematics 292 Street, Anne Penfold author. 18949 Wallis, Jennifer S. author. 18950 ddc BK 0 0 0 511_600000000000000_W214_CR 0 11345 ISI ISI 1998-09-08 0 511.6 W214.CR DP9235 2019-02-14 00:00:00 BK 9194 9194