- Academia Republicii Socialiste România. Filiala Cluj-Napoca (1)
- Academia Română. Filiale Cluj-Napoca (1)
- Collatz, L. (Lothar), 1910- (1)
- International Congress of Mathematicians (1)
- International Federation for the Theory of Machines and Mechanisms (1)
- James, Ralph Duncan (1)
- Meinardus, Günther, 1926- (1)
- University of Newcastle upon Tyne (1)
- Workshop on Numerical Methods of Approximation Theory (1)
- World Congress on the Theory of Machines and Mechanisms (1)
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