1. Sustainability and the Built Environment;Avrami;Conservation Perspectives. GCI Newsletter,2011
2. Papayianni, I., Bei, G. (2000) Low cost construction with stabilized mud bricks. International Conference on Modern Earth Buildings, 200, Berlin, 80-89.
3. Bei, G. (2004) Earth Masonry: experimental Investigation of Physical and mechanical Characteristics of structural Units made with compressed mud Bricks. Dissertation, Aristotle University of Thessaloniki.
4. Building houses with local materials: means to drastically reduce the environmental impact of construction;Morel;Building Environment,2001
5. (2006) Restoration of Earth Block Buildings in Vernacular Architecture. Materials and Techniques. International Conference on Heritage Protection: Construction Aspects;Papayianni;ECTP,2006