Casadio, Francesca, and Lucia Toniolo. "Polymer Treatments for Stone Conservation: Methods for Evaluating Penetration Depth." The American Institute for Conservation of Historic & Artistic Works 43 (2004): 3-21.

Casadio, Francesca, and Lucia Toniolo. "Polymer Treatments for Stone Conservation: Methods for Evaluating Penetration Depth." The American Institute for Conservation of Historic & Artistic Works 43 (2004): 3-21.