@article{10_4153_CJM_1979_062_1,
     author = {Drake, David A.},
     title = {Partial {\ensuremath{\lambda}-Geometries} and {Generalized} {Hadamard} {Matrices} {Over} {Groups}},
     journal = {Canadian journal of mathematics},
     pages = {617--627},
     year = {1979},
     volume = {31},
     number = {3},
     doi = {10.4153/CJM-1979-062-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1979-062-1/}
}