Band VII Wolbring – Zysset. Berlin, Boston: K. G. Saur, 2011. Web. Retrieved 25 May. 2013, from http://www.degruyter.com/view/product/40651

Band VII Wolbring – Zysset. (2011). Berlin, Boston: K. G. Saur. Retrieved 25 May. 2013, from http://www.degruyter.com/view/product/40651

Band VII Wolbring – Zysset. 2011. Berlin, Boston: K. G. Saur. Retrieved 25 May. 2013, from http://www.degruyter.com/view/product/40651