Best Practice Software-Engineering / A. Schatten, E. Gostischa-Franta, D. Winkler [et al.], 2010 r=on-line. - Текст : электронный.
Winkler D. Services offshoring and its impact on the labor market : theoretical insights, empirical evidence, and economic policy recommendations for Germany / D. Winkler, 2009 r=on-line. - Текст : электронный.