629.132 Bro C Broglio L ed. Current research in astronautical. sciences. proceedings of ths Rome Se- minar on Astronautics sponsored by Agard- N.AT.O. Oxford, Pergamón Press, 1961. xxi, 535 p. ilus., láms (1 pleg.). 25 cm. (International series of monograph in aeronautics and astronautics). Texto en ingles, frances e italiano. Bibliografía al final de los capítulos