p. 210: Widrich (Copy Shop) is mentioned alongside Christoph Waltz, Birgit Minichmayr and Götz Spielmann as a recognised Austrian filmmaker.
Hannes Leidinger, Verena Moritz, Karin Moser: „Streitbare Brüder. Austria – Germany“. Studienverlag, 2010. Widrich on p. 210 as an example of Austrian film success.