@article{DAN_1975_221_5_a0,
     author = {D. A. Babaev},
     title = {The method of hyperspheres for solving discrete programming problems},
     journal = {Doklady Akademii Nauk},
     pages = {1009--1012},
     year = {1975},
     volume = {221},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_221_5_a0/}
}