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@article{MV_1972_24_1_a22, author = {D. N. Krgovi\'c}, title = {O (f,g)- prstenima}, journal = {Matemati\v{c}ki vesnik}, pages = {151 }, publisher = {mathdoc}, volume = {24}, number = {1}, year = {1972}, url = {http://geodesic.mathdoc.fr/item/MV_1972_24_1_a22/} }
D. N. Krgović. O (f,g)- prstenima. Matematički vesnik, Tome 24 (1972) no. 1, p. 151 . http://geodesic.mathdoc.fr/item/MV_1972_24_1_a22/