Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1996_351_2_a3, author = {L. G. Labsker}, title = {Test closures of sets in a {Banach} space for linear functionals}, journal = {Doklady Akademii Nauk}, pages = {161--163}, publisher = {mathdoc}, volume = {351}, number = {2}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1996_351_2_a3/} }
L. G. Labsker. Test closures of sets in a Banach space for linear functionals. Doklady Akademii Nauk, Tome 351 (1996) no. 2, pp. 161-163. http://geodesic.mathdoc.fr/item/DAN_1996_351_2_a3/