1. Water transfer and decay of granitic stones in monuments;Alves;C.R. Académie des Sciences, Paris,1996
2. Stone Decay and Conservation;Amoroso,1983
3. Microbial calcification of gypsum rock and sulfated marble;Atlas;Studies in Conservation,1987
4. Marble tombstones in national cemeteries as indictors of stone damage: general methods;Baer,1983
5. Geoarchaeological dating of petroglyphs at Lake Onega, Russia;Bednarik;Geoarchaeology,1993