REFERENCES

[1] Burrough, P.A. (1986) Principles of Geographical Information Systems for Land Resources Assessment. Clarendon Press, Oxford University Press, New York.

[2] Aronoff, Stanley (1989) Geographic Information Systems: A management perspective WDL Publications, Ottawa, Canada.

[3] Star, Jeffrey, and Estes, John E. (1990) Geographic Information Systems: An introduction, Prentice-Hall inc., Englewood Cliffs, New Jersey.

[4] Camuffo D. and Bernardi A., 1995: The Microclimate in the Sistine Chapel. Joint Edition Bollettino Geofisico and European Cultural Heritage Newsletter on Research, Vol.9, 32 pp.

[5] Bernardi A., Todorov V. and Hiristova J., 2000: Microclimatic Analysis in the St. Stephan Church, Nessebar - Bulgaria after Interventions for the Conservation of the Frescoes. Science and Tecnology for Cultural Heritage 1, 281-286.

[6] A.Castellano et al., Portable systems for energy dispersive X-ray fluorescence analysis of works of art, Journal of Trace & Microprobe Techniques, 1996.

[7] Brovelli M.: Guida all’uso di MapServer- Politecnico di Milano, 2001.

[8] http://www.perl.com/, http://www.jsdir.com/.

[9] http://www.libpng.org/pub/png/.