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@article{PIM_1979_N_S_25_39_a19, author = {Vojislav Petrovi\'c}, title = {Product-Concircular {Curvature} {Tensor}}, journal = {Publications de l'Institut Math\'ematique}, pages = {131 }, publisher = {mathdoc}, volume = {_N_S_25}, number = {39}, year = {1979}, url = {http://geodesic.mathdoc.fr/item/PIM_1979_N_S_25_39_a19/} }
Vojislav Petrović. Product-Concircular Curvature Tensor. Publications de l'Institut Mathématique, _N_S_25 (1979) no. 39, p. 131 . http://geodesic.mathdoc.fr/item/PIM_1979_N_S_25_39_a19/