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@article{PIM_1983_N_S_33_47_a16, author = {Jin Bai Kim and James E. Dowdy}, title = {On {N-dimensional} {Idempotent} {Matrices}}, journal = {Publications de l'Institut Math\'ematique}, pages = {119 }, publisher = {mathdoc}, volume = {_N_S_33}, number = {47}, year = {1983}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PIM_1983_N_S_33_47_a16/} }
Jin Bai Kim; James E. Dowdy. On N-dimensional Idempotent Matrices. Publications de l'Institut Mathématique, _N_S_33 (1983) no. 47, p. 119 . http://geodesic.mathdoc.fr/item/PIM_1983_N_S_33_47_a16/