Cappitelli F; Principi P; Pedrazzani R; Toniolo L; Sorlini C (2007). «Bacterial and fungal deterioration of the Milan Cathedral marble treated with protective synthetic resins». Science of the Total Environment385 (1–3): 172–81. doi:10.1016/j.scitotenv.2007.06.022. PMID17658586. Bibcode: 2007ScTEn.385..172C.
Cappitelli F; Principi P; Pedrazzani R; Toniolo L; Sorlini C (2007). «Bacterial and fungal deterioration of the Milan Cathedral marble treated with protective synthetic resins». Science of the Total Environment385 (1–3): 172–81. doi:10.1016/j.scitotenv.2007.06.022. PMID17658586. Bibcode: 2007ScTEn.385..172C.
Cappitelli F; Principi P; Pedrazzani R; Toniolo L; Sorlini C (2007). «Bacterial and fungal deterioration of the Milan Cathedral marble treated with protective synthetic resins». Science of the Total Environment385 (1–3): 172–81. doi:10.1016/j.scitotenv.2007.06.022. PMID17658586. Bibcode: 2007ScTEn.385..172C.