| First Name | Last Name | Institutions | Articles |
|---|---|---|---|
| Oliver | Pisar | Technical University of Košice | 1 |
| Oleksandr | Shmatko | National Technical University "Kharkiv Polytechnic Institute" | 1 |
| Olena | Plakhotnik | Dniprovsk State Technical University | 1 |
| Olga | Nikiforova | Saint Petersburg State University | 1 |
| Olga | Burova | Rezekne Academy of Technologies | 1 |
| Oksana | Melnyk | Kyiv National Economic University named after Vadym Hetman | 1 |
| Olga Valeryevna | Kozminykh | Saint Petersburg State University | 1 |
| Ondřej | Peclinovský | Institute of Technology and Business in České Budějovice | 1 |
| Oleksii | Shumilo | Kharkiv National University of Internal Affairs | 1 |
| Olexandr | Zyma | Simon Kuznets Kharkiv National University of Economics | 1 |
| Olga | Zinisha | Kuban State Agrarian University | 1 |
| Oliver | Bubelíny | University of Žilina | 1 |
| Oleksandr | Litvinov | Odessa National University of Economics | 1 |
| Olena | Hryhorevska | Kyiv National University of Technologies and Design | 1 |
| Olga | Lenkova | Tyumen Industrial University | 1 |
| Ona Gražina | Rakauskienė | Mykolas Romeris University | 2 |
| Olga | Lingaitienė | Vilnius Gediminas Technical University (VILNIUS TECH) | 2 |
| Oleksandr | Karamushka | Dnipro State Agrarian and Economic University | 2 |
| Omar A. | Alismaiel | King Faisal University | 2 |
| Oleksandra | Gron | Simon Kuznets Kharkiv National University of Economics | 2 |