Friedland, S. (2019) Infinite dimensional generalizations of Choi’s Theorem. Special Matrices, Vol. 7 (Issue 1), pp. 67-77. https://doi.org/10.1515/spma-2019-0006
Friedland, Shmuel. "Infinite dimensional generalizations of Choi’s Theorem" Special Matrices 7, no. 1 (2019): 67-77. https://doi.org/10.1515/spma-2019-0006