Content Provider
Universidade do Algarve: Sapienta
3
DRO - Deakin Research Online
1
Digital.CSIC (Spanish National Research Council)
1
Minerva - Repositorio institucional da Universidade de Santiago de Compostela (USC)
1
Padua Research Archive (IRIS - Università degli Studi di Padova)
1
Technical University of Denmark: DTU Orbit
1
University of Thessaly Institutional Repository
1