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@article{MZM_1974_15_5_a7, author = {E. D. Positsel'skii}, title = {Projection constants of symmetric spaces}, journal = {Matemati\v{c}eskie zametki}, pages = {719--727}, publisher = {mathdoc}, volume = {15}, number = {5}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1974_15_5_a7/} }
E. D. Positsel'skii. Projection constants of symmetric spaces. Matematičeskie zametki, Tome 15 (1974) no. 5, pp. 719-727. http://geodesic.mathdoc.fr/item/MZM_1974_15_5_a7/