FODOR, Valerian-Alin, and †Nicolae POPOVICI. “Reducing the Complexity of Equilibrium Problems and Applications to Best Approximation Problems”. Studia Universitatis Babeș-Bolyai Mathematica, vol. 68, no. 3, Sept. 2023, pp. 649-61, doi:10.24193/subbmath.2023.3.13.