%0 Journal Article %A Drake, David A. %T Partial λ-Geometries and Generalized Hadamard Matrices Over Groups %J Canadian journal of mathematics %D 1979 %P 617-627 %V 31 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1979-062-1/ %R 10.4153/CJM-1979-062-1 %F 10_4153_CJM_1979_062_1