RUC: Repositorio da Universidade da Coruña Universidade da Coruña (UDC) Technological and Economic Development of Economy; Vol 27 No 1 (2021); 1-23 Technological and Economic Development of Economy; Articles in Press; 1-23 Technological and Economic Development of Economy, Vol 27, Iss 1, Pp 1-23 (2021) RUC. Repositorio da Universidade da Coruña Universitat Oberta de Catalunya (UOC)
Energies Volume 7 Issue 10 Pages 6721-6740 Energies, Vol 7, Iss 10, Pp 6721-6740 (2014) RUO. Repositorio Institucional de la Universidad de Oviedo instname