Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1979_26_3_a10, author = {I. Ya. Gusak and Yu. A. Shashkin}, title = {Finitely positively independent sets}, journal = {Matemati\v{c}eskie zametki}, pages = {417--426}, publisher = {mathdoc}, volume = {26}, number = {3}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1979_26_3_a10/} }
I. Ya. Gusak; Yu. A. Shashkin. Finitely positively independent sets. Matematičeskie zametki, Tome 26 (1979) no. 3, pp. 417-426. http://geodesic.mathdoc.fr/item/MZM_1979_26_3_a10/