- International Conference on Operator Theory (11)
- Helson, Henry (4)
- Apostol, C. (Constantin) (3)
- Arsene, Grigore (2)
- Gheondea, A. (Aurelian), 1955- (2)
- Vasilescu, Florian-Horia, 1941- (2)
- Davidson, Kenneth R. (1)
- Gaşpar, Dumitru (1)
- Gologan, R. N. (1)
- Szőkefalvi-Nagy, Béla, 1913- (1)
- Timotin, D. (Dan), 1953- (1)
- Timotion, D. (1)