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@article{FAA_1991_25_2_a14, author = {A. M. Gomilko}, title = {Purely imaginary fractional powers of operators}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {78--80}, publisher = {mathdoc}, volume = {25}, number = {2}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1991_25_2_a14/} }
A. M. Gomilko. Purely imaginary fractional powers of operators. Funkcionalʹnyj analiz i ego priloženiâ, Tome 25 (1991) no. 2, pp. 78-80. http://geodesic.mathdoc.fr/item/FAA_1991_25_2_a14/