Pran Gopal Paul, Monk Gunākarasena's Homage to the Tathāgata: Reflections on an Inscribed Pāla Icon from Magadha, Indo-kôku-kenkyû (Indian Archaeological Studies), no. 18 (1996-97), pp. 26-34. A small early-10th-century stone carved image of Buddha has an inscription of ownership on the back (as well as Ye dharma...).
