Albert Grünwedel, A Review of the Collection of Lamaist Objects of Prince E. Ukhtomsky (in Russian), Bibliotheca Buddhica, vol. 6 (1905).
Elena A. Khamaganova, Princes Esper and Dii Ukhtomsky and Their Contribution to the Study of Buddhist Culture (Tibet, Mongolia & Russia), contained in: Henk Blezer, ed., Tibet, Past and Present: Tibetan Studies I, Brill (Leiden 2002), pp. 307-326.
