Azizov, T. Y., & Kiriakidi, V. K. (2000). Convexity and weak closedness of the image of operator balls under linear-fractional transformations. Mathematical Notes, 67(2), 245-247. https://doi.org/10.1007/BF02686253
Chicago Style (17th ed.) CitationAzizov, T. Ya, and V. K. Kiriakidi. "Convexity and Weak Closedness of the Image of Operator Balls Under Linear-fractional Transformations." Mathematical Notes 67, no. 2 (2000): 245-247. https://doi.org/10.1007/BF02686253.
MLA (9th ed.) CitationAzizov, T. Ya, and V. K. Kiriakidi. "Convexity and Weak Closedness of the Image of Operator Balls Under Linear-fractional Transformations." Mathematical Notes, vol. 67, no. 2, 2000, pp. 245-247, https://doi.org/10.1007/BF02686253.
Warning: These citations may not always be 100% accurate.