Physics and geophysics with special historical case studies : a festschrift in honour of Karl-Heinrich Widerkehr
collected and edited by Wilfried Schröder
(Mitteilungen des Arbeitskreises Geschichte der Geophysik, 16. Jahrg.,
Interdivisional Commission on History, International Association of Geomagnetism and Aeronomy, 1997
English, German and French
Interdivisional Commission on History, International Association of Geomagnetism and Aeronomy
Interdivisional Commission on History of IAGA : History Commission of the German Geophysical Society