Glinsman, L.A. and L.C. Hayek. "A Multivariate Analysis of Renaissance Portrait Medals: An Expanded Nomenclature for Defining Alloy Composition." Archaeometry 35/1 (1993): 49-67.

Glinsman, L.A. and L.C. Hayek. "A Multivariate Analysis of Renaissance Portrait Medals: An Expanded Nomenclature for Defining Alloy Composition." Archaeometry 35/1 (1993): 49-67.