1. Longhetto, A.; Giacomelli, L.; Giraud, C.; Zaramella, G. A study of correlation among solar energy, atmospheric turbidity and pollutants in urban area. Atmospheric Environment 1992, 26B, 29-43.
2. Barbaro, S.; Costanzo, S.; Grippali, V.; Nicoletti, F. R. A graphical procedure for assessing the global comfort of people in outdoor spaces., Proceedings of the 2nd European Conference REBUILD The European Cities of Tomorrow, Florence, Italy, (1998).
3. Barbaro, S, Bonanno, A.; Chisesi, R, M,; Costanzo, S.; Franzitta, V Grippali, V. Clima e salute nel centro urbano di Palermo, Proceedings 54° congresso nazionale ATI, L'Aquila, Italy, September (1999).
4. Barbaro, S, Bonanno, A.; Grippali. . An assessment of light and sound fields for improving the outdoor global comfort., Proceedings of the 3nd European Conference REBUILD The European Cities of Tomorrow, Barcelona, Spain, October (1999).
5. Franzitta, V., Rizzo, G. - Renewable energy sources: A mediterranean perspective. ICBEE 2010-2nd International Conference on Chemical, Biological and Environmental Engineering, Proceedings, pp.48-51, art. no. 5652332 (2010).