Style de citation APA (7e éd.)

Bahyrycz, A., Brzdęk, J., El-hady, E., & Leśniak, Z. (2021). On Ulam Stability of Functional Equations in 2-Normed Spaces—A Survey. MDPI AG.

Style de citation Chicago (17e éd.)

Bahyrycz, Anna, Janusz Brzdęk, El-sayed El-hady, et Zbigniew Leśniak. On Ulam Stability of Functional Equations in 2-Normed Spaces—A Survey. MDPI AG, 2021.

Style de citation MLA (8e éd.)

Bahyrycz, Anna, et al. On Ulam Stability of Functional Equations in 2-Normed Spaces—A Survey. MDPI AG, 2021.