Keller, Tamás and Kiss, Hubert János ORCID: https://orcid.org/0000-0003-3666-9331 (2026) How Socioeconomic Status Differences Observable in Students' Delay of Gratification Evolved Over the Period of COVID-19-induced Online Education. Periodica Polytechnica Social and Management Sciences, 34 (1). pp. 24-32. DOI 10.3311/PPso.21893
