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@article{MV_1971_23_1_a31, author = {M. G. Lazi\'c}, title = {O perfektnosti permanentnih trouganih postupaka}, journal = {Matemati\v{c}ki vesnik}, pages = {271 }, publisher = {mathdoc}, volume = {23}, number = {1}, year = {1971}, url = {http://geodesic.mathdoc.fr/item/MV_1971_23_1_a31/} }
M. G. Lazić. O perfektnosti permanentnih trouganih postupaka. Matematički vesnik, Tome 23 (1971) no. 1, p. 271 . http://geodesic.mathdoc.fr/item/MV_1971_23_1_a31/