Convergence of positive operators.

MLA

Ustinov, G. “Convergence of Positive Operators.” Mathematical Notes, vol. 26, no. 2, Aug. 1979, pp. 593–99. EBSCOhost, https://doi.org/10.1007/BF01157376.

APA

Ustinov, G. (1979). Convergence of positive operators. Mathematical Notes, 26(2), 593–599. https://doi.org/10.1007/BF01157376

Chicago

Ustinov, G. 1979. “Convergence of Positive Operators.” Mathematical Notes 26 (2): 593–99. doi:10.1007/BF01157376.