@article{DAN_1976_231_5_a15,
     author = {R. F. Fikhmanas and P. Sh. Fridberg},
     title = {On one method of numerical realization of the {Schwinger} variational principle},
     journal = {Doklady Akademii Nauk},
     pages = {1088--1091},
     publisher = {mathdoc},
     volume = {231},
     number = {5},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1976_231_5_a15/}
}