1. Los yacimientos de crocidolita en las yungas de Cochabamba;Ahlfeld;Notas Museo La Plata,1943
2. The system, MgO-FeO-SiO2;Bowen;Amer. J. Sci.,1935
3. Grunerite from Rockport, Massachusetts, and a series of synthetic fluor-amphiboles;Bowen;Amer. Min.,1935
4. Hydrothermal investigations of amphiboles;Boyd,1959
5. The Atomic Structure of Minerals;Bragg,1937