List of Articles Grey number (GN) Open Access Article Abstract Page Full-Text 1 - A Hybrid Model for Assessing Student Mathematical Skills Michael Voskoglou 10.30495/tfss.2022.1971496.1052 Open Access Article Abstract Page Full-Text 2 - A “Journey” from Traditional to Fuzzy Methods of Decision-Making Michael Gr. Voskoglou 10.30495/TFSS.2024.1106981