Rüdiger Schmitt, Harold Walter Bailey, 2011., Iranian influences in Armenian Language, Encyclopædia Iranica, pristupljeno 19. srpnja 2019. "The revolutionary element in Hübschmann’s procedure was that according to him Arm. words fully or largely agreeing with Ir. forms in phonetic shape were suspect of being loanwords and could therefore not safely be regarded as genuine Arm. words. It was due to this methodological principle, which only gradually gained universal acceptance, that Hübschmann became the significant pioneer in the study of Ir. borrowings in Armenian."