The Pilatus unmanned aircraft system for lower atmospheric research oleh G. de Boer, S. Palo, B. Argrow, G. LoDolce, J. Mack, R.-S. Gao, H. Telg, C. Trussel, J. Fromm, C. N. Long, G. Bland, J. Maslanik, B. Schmid, T. Hock