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@article{DAN_1969_185_5_a6, author = {A. I. Plotkin}, title = {Isometric operators in spaces of summable analytic and harmonic functions}, journal = {Doklady Akademii Nauk}, pages = {995--997}, publisher = {mathdoc}, volume = {185}, number = {5}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1969_185_5_a6/} }
A. I. Plotkin. Isometric operators in spaces of summable analytic and harmonic functions. Doklady Akademii Nauk, Tome 185 (1969) no. 5, pp. 995-997. http://geodesic.mathdoc.fr/item/DAN_1969_185_5_a6/