The HXR80M Balloon Experiment - a Microprocessor Controlled Transatlantic Payload Ubertini, P. ; Bazzano, A. ; Boccaccini, L. ; La Padula, C. ; Mastropietro, M. ; Medici, G. ; Patriarca, R. ; Polcaro, V. F. ; Faggioni, F. Abstract Publication: European Rocket Balloon Program Pub Date: 1980 Bibcode: 1980ESASP.152..425U