Time Pattern of Ionizing Radiation in Balloon Altitudes in High Latitudes Mitteilungen aus dem Max-Planck-Institut für Aeronomie, nr. 9 Autor G. Pfotzer et al. 1962 Paperback Preț: 363.99 lei 43-57 zile
Measurements of High Energetic Auroral Radiations with Balloon-Borne Detectors in 1962 and 1963 Mitteilungen aus dem Max-Planck-Institut für Aeronomie, nr. 18 G. Pfotzer et al. 1965 Paperback Preț: 367.33 lei 43-57 zile