1. Osservazione sugli strati monocromipresenti sui monumenti romani antichi;Alessandri,1986
2. Epilithic and chasmolithic microflora (Cyanophyta, Bacillariophyta) from marbles of Parthenon (Acropolis - Athens, Greece);Anagnostidis;Nova Hedwigia,1983
3. Biodeterioration of natural and artificial stone caused by algae, lichens, mosses, and higher plants;Bech-Anderson,1984
4. A comparison of soil microbial ecosystems in hot, cold and polar desert regions;Cameron,1972
5. Proposal for a data base on biodeterioration of stone artworks;Caneva,1985