Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_2003_73_5_a13, author = {D. V. Gorbachev}, title = {An {Extremum} {Problem} for {Periodic} {Functions} with {Small} {Support}}, journal = {Matemati\v{c}eskie zametki}, pages = {773--778}, publisher = {mathdoc}, volume = {73}, number = {5}, year = {2003}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_2003_73_5_a13/} }
D. V. Gorbachev. An Extremum Problem for Periodic Functions with Small Support. Matematičeskie zametki, Tome 73 (2003) no. 5, pp. 773-778. http://geodesic.mathdoc.fr/item/MZM_2003_73_5_a13/