Ergevank'/Erk’ewank', K’avazin, Gag, and Matsnaberd of the principality of VahramGageli-Mkhargrdzeli of Gag, in 1233. Bayarsaikhan Dashdondog. The Mongols and
Ergevank'/Erk'ewank', K'avazin, Gag, and Matsnaberd of the principality of VahramGageli-Mkhargrdzeli of Gag, in 1233. История Вардана вардапета (Հաւաքումն պատմութեան