Interview about situation regarding large scale projects: IMMOBILIEN ZEITUNG, January 16, 2014 

An Inventory of Construction in Germany, Essay, E. Gensior, January 2014

Improved Project Development by Modeling a Portfolio System, Diss. Bauhaus University Weimar, 2001

Project Development in Construction and Real Estate: Baumanagement im Lebenszyklus von Gebäuden, Universitätsverlag Weimar, 1999

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