Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_2003_5_a3, author = {S. Ya. Serovaǐskiǐ}, title = {Lower augmentation and extension of extremal problems}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {30--41}, publisher = {mathdoc}, number = {5}, year = {2003}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_2003_5_a3/} }
S. Ya. Serovaǐskiǐ. Lower augmentation and extension of extremal problems. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 5 (2003), pp. 30-41. http://geodesic.mathdoc.fr/item/IVM_2003_5_a3/