The ZEW ICT Survey 2002 to 2015: Measuring the Digital Transformation in German Firms
Non-Refereed Journal // 2017Bertschek, Irene, Jörg Ohnemus and Steffen Viete (2017), The ZEW ICT Survey 2002 to 2015: Measuring the Digital Transformation in German Firms, Journal of Economics and Statistics (Jahrbücher für Nationalökonomie und Statistik) 238 (1) , 87-99