@article{DA_2006_13_1_a3,
     author = {M. S. Ershova},
     title = {The branch and bound method for a~quadratic problem of bilevel programming},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {40--56},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2006_13_1_a3/}
}