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@article{PORMA_1966__25_1_114971, author = {Hodges, John H.}, title = {Weighted bilinear partitions for integral matrices}, journal = {Portugaliae mathematica}, pages = {1--14}, publisher = {mathdoc}, volume = {25}, number = {1}, year = {1966}, mrnumber = {0211989}, zbl = {0156.27604}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1966__25_1_114971/} }
Hodges, John H. Weighted bilinear partitions for integral matrices. Portugaliae mathematica, Tome 25 (1966) no. 1, pp. 1-14. http://geodesic.mathdoc.fr/item/PORMA_1966__25_1_114971/