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@article{MZM_1984_36_1_a8, author = {G. M. Ustinov}, title = {Chebyshev subspaces of spaces of abstract affine functions}, journal = {Matemati\v{c}eskie zametki}, pages = {89--101}, publisher = {mathdoc}, volume = {36}, number = {1}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1984_36_1_a8/} }
G. M. Ustinov. Chebyshev subspaces of spaces of abstract affine functions. Matematičeskie zametki, Tome 36 (1984) no. 1, pp. 89-101. http://geodesic.mathdoc.fr/item/MZM_1984_36_1_a8/