• https://repositorio.iscte-iul.pt/handle/10071/36933
• https://repositorio.iscte-iul.pt/handle/10071/36934
• https://repositorio.iscte-iul.pt/handle/10071/36935
• https://repositorio.iscte-iul.pt/handle/10071/36941
• https://repositorio.iscte-iul.pt/handle/10071/36942
• https://repositorio.iscte-iul.pt/handle/10071/36943