This important article by Francis Woodman Cleaves was published in the
Harvard Journal of Asiatic Studies vol. 12, #3-4 (1949) pp. 400-443, then subsequently in a book together with Robert P. Blake's translation of Aknerts'i [
History of the Nation of the Archers (the Mongols) by Grigor of Akants', hitherto ascribed to Maghak'ia the Monk, the Armenian text edited with an English translation and notes by Robert P. Blake and Richard N. Frye (Cambridge, Mass., 1954)]. A thorough discussion with extensive bibliography of the Mongolian names and terms in a 13th-century Cilician Armenian historical source. Graphics in zipped HTML files, prepared and uploaded by Robert Bedrosian. A full
English translation of Grigor's important work is available at Internet Archive.