Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1989_46_2_a18, author = {Yu. V. Kryakin}, title = {Whitney constants}, journal = {Matemati\v{c}eskie zametki}, pages = {155--157}, publisher = {mathdoc}, volume = {46}, number = {2}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1989_46_2_a18/} }
Yu. V. Kryakin. Whitney constants. Matematičeskie zametki, Tome 46 (1989) no. 2, pp. 155-157. http://geodesic.mathdoc.fr/item/MZM_1989_46_2_a18/