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Von Hertz zum Handy - Entwicklung der Kommunikation (German Edition)
Gudrun Wolfschmidt, K. H. Wiederkehr · Books On Demand
370 sayfa · 2007
Exhibitions / Cell phones / History / Communication / Technological innovations
Physics and geophysics with historical case studies
Wilfried Schröder, K. H. Wiederkehr · Interdivisional Commission on History of IAGA
409 sayfa · 1997
Geophysics / History