Gabbert, G. and W. Lieb. "On the Use of a Gastro Fibrescope for Reading Inscriptions on the Inside of Japanese Sculptures". Studies in Conservation 15/4 (Nov. 1970): 294-303

Gabbert, G. and W. Lieb. "On the Use of a Gastro Fibrescope for Reading Inscriptions on the Inside of Japanese Sculptures". Studies in Conservation 15/4 (Nov. 1970): 294-303