Hein, Jan, Peter Mankowski and Dieter Henrich. Art 18 EGBGB; Anh I-III zu Art 18. (Internationales Unterhaltsrecht). Berlin, Boston: Sellier - de Gruyter, 2014. Web. Retrieved 19 May. 2013, from http://www.degruyter.com/view/product/181156

Hein, J., Mankowski, P. & Henrich, D. (2014). Art 18 EGBGB; Anh I-III zu Art 18. (Internationales Unterhaltsrecht). Berlin, Boston: Sellier - de Gruyter. Retrieved 19 May. 2013, from http://www.degruyter.com/view/product/181156

Hein, Jan, Peter Mankowski and Dieter Henrich. 2014. Art 18 EGBGB; Anh I-III zu Art 18. (Internationales Unterhaltsrecht). Berlin, Boston: Sellier - de Gruyter. Retrieved 19 May. 2013, from http://www.degruyter.com/view/product/181156