| First Name | Last Name | Institutions | Articles |
|---|---|---|---|
| Rolandas | Strazdas | Vilnius Gediminas Technical University (VILNIUS TECH) | 2 |
| Ramunė | Budrionytė | Vilnius University | 2 |
| Reem A. | Alqahtani | Taif University | 2 |
| Robert | Magda | Szent István University; North-West University |
2 |
| Radosław | Miśkiewicz | Silesian University of Technology | 2 |
| Raouf | Jaziri | University of Jeddah | 2 |
| Rastislav | Kazanský | Matej Bel University in Banská Bystrica | 2 |
| Richard | Rigó | Alexander Dubček University of Trenčín | 2 |
| Radka | Marčeková | Matej Bel University in Banská Bystrica | 2 |
| Rasa | Žilienė | Klaipėda University | 2 |
| Robin | Kunju Mol Raj | Institute of Technology and Business in České Budějovice | 2 |
| Rudolf | Sivák | Bratislava University of Economics and Business | 2 |
| Robert | Huterski | Nicolaus Copernicus University | 1 |
| Raheel Amir | Awan | University of Lahore | 1 |
| Roxana | Badircea | University of Craiova | 1 |
| Renata | Trubovich | Polatsk State University | 1 |
| Ruslana | Sodoma | Lviv National Agrarian University | 1 |
| Rimantas | Sinkevičius | 1 | |
| Rachmi Cahya | Amalia | Airlangga University | 1 |
| Radosław | Korneć | Siedlce University of Natural Sciences and Humanities | 1 |