@article{UZERU_1991_2_a3,
     author = {A. R. Brutian},
     title = {On the minimization of a non-linear functional},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {22--27},
     publisher = {mathdoc},
     number = {2},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZERU_1991_2_a3/}
}