المؤلفون: Blaufus, K., Bob, J., Hundsdoerfer, J., Sielaff, C., Kiesewetter, D., Weimann, J.

المصدر: Steuer und Wirtschaft - StuW ; volume 87, issue 4, page 337-345 ; ISSN 2366-1461 0341-2954

الاتاحة: http://dx.doi.org/10.9785/stuw-2010-870404
https://www.degruyter.com/document/doi/10.9785/stuw-2010-870404/xml
https://www.degruyter.com/document/doi/10.9785/stuw-2010-870404/pdf