J. M. Rocha,  "Political pressures and hesitations, Portugal, the United States of America and the operation nickel grass: Final stages on the way to the end of the Portuguese colonial empire", in The Creation of New States and the Collapse of Old Empires In the XX Century , José António M. de Ataíde Banazol, Ed., Jerusalem, Israeli Commission of Military History, 2021, pp. 231-238