Author: Bernd Carsten Support1 Ebooks by Bernd Carsten Bernd Carsten Stahl: Issues and Trends in Technology and Human Interaction … PDF DRM €121.53 0 0 Checkout 0,00 × × × Change user language × ArabicGermanEnglishSpanishFrenchHindiIndonesianItalianMalayDutchPolishPortugueseRomanianRussianSwedishThaiTurkishUkrainianVietnameseChineseInternational Modal ×