| First Name | Last Name | Institutions | Articles |
|---|---|---|---|
| Ola | Bareja-Wawryszuk | Siedlce University of Natural Sciences and Humanities | 1 |
| Oleg Mikhailovich | Tolmachev | Bauman Moscow State Technical University | 1 |
| Ondřej | Dvorák | Institute of Technology and Business in České Budějovice | 1 |
| Oleksii | Dniprov | Office of the President of Ukraine | 1 |
| Olesia | Dubovych | Poltava State Agrarian Academy | 1 |
| Olga | Anichkina | K.G. Razumovsky Moscow State University of technologies and management | 1 |
| Oksana | Levkovich | Dnipro State Agrarian and Economic University | 1 |
| Olga Vadimirovna | Protopopova | Peoples’ Friendship University of Russia | 1 |
| Olha | Us | Yaroslav Mudryi National Law University | 1 |
| Oleksandr | Laiko | Institute of Market Problems and Economic-Ecological Research NAS of Ukraine | 1 |
| Oxana | Posukhova | Southern Federal University | 1 |
| Olena | Dovgal | Mykolayiv State Agrarian University; University of Customs and Finance |
1 |
| Oguz | Turkay | Sakarya University of Applied Sciences | 1 |
| Olga | Soboleva | Pan-European University | 1 |
| Oksana Viktorovna | Shumakova | Omsk State Agrarian University after P.A. Stolypin | 1 |
| Oksana | Ivashchenko | Bratislava University of Economics and Management; National Technical University "Kharkiv Polytechnic Institute" |
2 |
| Olha | Brovko | Simon Kuznets Kharkiv National University of Economics | 2 |
| Olga | Gogulya | National University of Life and Environmental Sciences of Ukraine | 2 |
| Osama | Wagdi | Modern University for Technology and Information; International Academy For Engineering & Media Science |
2 |
| Olga | Cherednichenko | Bratislava University of Economics and Management | 2 |