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@article{DAN_1965_162_3_a4, author = {A. A. Kirillov}, title = {Positive-definite functions on a group of matrices with elements from a discrete field}, journal = {Doklady Akademii Nauk}, pages = {503--505}, publisher = {mathdoc}, volume = {162}, number = {3}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1965_162_3_a4/} }
A. A. Kirillov. Positive-definite functions on a group of matrices with elements from a discrete field. Doklady Akademii Nauk, Tome 162 (1965) no. 3, pp. 503-505. http://geodesic.mathdoc.fr/item/DAN_1965_162_3_a4/