|
Universidad de Jaén
|
University
|
Spain |
10
|
|
Universidade de Vigo
|
University
|
Spain |
9
|
|
University of Oulu
|
University
|
Finland |
8
|
|
Galician Center for Mathematical Research and Technology
|
Research Centre
|
Spain |
8
|
|
Universidade de Évora
|
University
|
Portugal |
7
|
|
University of Calabria
|
University
|
Italy |
6
|
|
University of Catania
|
University
|
Italy |
3
|
|
Universidade de Lisboa
|
University
|
Portugal |
3
|
|
Universidad Nacional de Educación a Distancia
|
University
|
Spain |
2
|
|
Université de Tunis El Manar
|
University
|
Tunisia |
2
|
|
West University of Timişoara
|
University
|
Romania |
2
|
|
Institute of Mathematics and Informatics
|
Research Centre
|
Bulgaria |
2
|
|
Institute of Nuclear Physics
|
Research Centre
|
Uzbekistan |
2
|
|
Università di Udine
|
University
|
Italy |
1
|
|
University of Queensland
|
University
|
Australia |
1
|
|
National University of Ireland, Galway
|
University
|
Ireland |
1
|
|
Masaryk University
|
University
|
Czechia |
1
|
|
University of Messina
|
University
|
Italy |
1
|
|
Florida Institute of Technology
|
University
|
United States |
1
|
|
Universidade Federal de Campina Grande
|
University
|
Brazil |
1
|
|
Universidad Federal de Pará
|
University
|
Brazil |
1
|
|
Tamkang University
|
University
|
Taiwan |
1
|
|
Texas A&M University–Kingsville
|
University
|
United States |
1
|
|
Institute of Oriental Studies
|
Research Centre
|
Russia |
1
|
|
Universidad de Chile
|
University
|
Chile |
1
|
|
Université IBN Khaldoun Tiaret
|
University
|
Algeria |
1
|
|
Academy of Sciences of the Czech Republic
|
Research Centre
|
Czechia |
1
|
