Portugal : a economia de uma nação rebelde / José Manuel Félix Ribeiro
Recent developments in space law : opportunities & challenges / ed. by Venkata Rao, V. Gopalakrishnan, Kumar Abhijeet
National space legislation in Europe : issues of authorisation of private space activities in the light of developments in european space cooperation / ed. by Frans G. von der Dunk
Visto da Católica : a economia portuguesa em exame