Loures, Luís (Polytechnic Institute of Portalegre, Portugal)
Mora Aliseda, Julián (University of Extremadura, Spain)
Castanho, Rui (WSB University in Dabrowa Gornicza, Poland)
Mora, Consuelo (FUNDICOTEX, Spain)
Contact:
e-mail address: sd2021@ipportalegre.pt