@article{FAA_1988_22_1_a12, author = {Ya. V. Mikityuk}, title = {Uniqueness theorems for analytic operator-valued functions with nonnegative imaginary part}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {73--74}, publisher = {mathdoc}, volume = {22}, number = {1}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1988_22_1_a12/} }