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2. P. Degryse, Mineral resources and their use on the territory of Sagalassos (SW Turkey), Unpublished PhD thesis, Katholieke Universiteit Leuven, Leuven, 2001.
3. Degradation and restoration of masonry walls of historic buildings;Collepardi;Mater. Struct.,1990
4. Lime based mortars for restoration of historical mortars especially under wall paintings;Michoinová,1999
5. Venice Charter, International Charter for the conservation and restoration of monuments and sites, Venice, 1964 (web site: 〈http://www.icomos.org/docs/venice_charter.html〉).