The theory found support among Armenian architecture historians, such as Toros Toramanian, Tiran Marutuan, Murad Hasratyan. Rouben Paul Adalian wrote, "the interior with its pointed arches and clustered piers rising to the ribbed ceiling vaults, included innovations whose parallels would appear in Gothic architecture in Western Europe a century later." Armen Der Kiureghian wrote that the cathedral is "significant from an architectural standpoint, as it contains elements of Gothic architecture, i.e., clustered columns and pointed arches, long before they appeared in Europe."