autores
- Fernandes, Paula Odete
- Teixeira, João Paulo Ramos
- João Matos Ferreira
- Azevedo, S.
- Fernandes, Paula Odete; Polytechnic Institute of Bragança
- Teixeira, João Paulo; Polytechnic Institute of Bragança
- Ferreira, João Matos; University of Beira Interior (UBI)
- Azevedo, Susana Garrido; University of Beira Interior (UBI)