University of Dubrovnik
Croatia
University of Ruse “Angel Kanchev”
Bulgaria
Hochschule Geisenheim University
Germany
Instituto Politécnico de Beja
Portugal
University of Avieiro
Portugal
University of Évora
Portugal
University of Minho
Portugal
University of Porto
Portugal
Polytechnic Institute of Bragança
Portugal
University of Almeria
Spain
University of Granada
Spain
Jagiellonian University
Poland
Powiślański University
Poland
University of Szczecin
Poland
