| First Name | Last Name | Institutions | Articles |
|---|---|---|---|
| Ogujiuba | Kanayo | University of Mpumalanga | 1 |
| Oksana V. | Zayachkivska | National University of Water and Environmental Engineering | 1 |
| Olha | Prokopenko | Tallinn University of Technology | 1 |
| Ovidiu Niculae | Bordean | Babeș-Bolyai University | 1 |
| Olena | Danchenko | Cherkasy State Technological University | 1 |
| Olena | Vartanova | Cherkasy State Technological University | 1 |
| Olga | Starineca | University of Latvia | 1 |
| Oksana | Budko | Dniprovsk State Technical University | 1 |
| Olga V. | Rogach | Russian State Social University | 1 |
| Oleg | Litvishko | Plekhanov Russian University of Economics | 1 |
| Olga | Finogentova | Immanuel Kant Baltic Federal University | 1 |
| Odeta | Merfeldaitė | Mykolas Romeris University | 1 |
| Olga | Iermakova | Institute of Market Problems and Economic-Ecological Research NAS of Ukraine; Odessa National University of Economics |
1 |
| Oksana N. | Berduygina | Tyumen Industrial University | 1 |
| Olha | Bezpalova | Kharkiv National University of Radio Electronics | 1 |
| Oleksandr | Ignatenko | Taras Shevchenko National University of Kyiv | 1 |
| Osama Hamad | Alowaimer | Majmaah University | 1 |
| Olena | Bielova | «KROK» University | 1 |