Azatyan, K.R., Azatyan, R.S., Yolyan, A.A. and Smelkov, N.O. 2021. The Impact of the Constructive Solution on the Formation of the Portal in the Architecture of Armenian Churches of 4th-7th Centuries. Journal of Architectural and Engineering Research. 1, 2 (Dec. 2021), 16–31. DOI:https://doi.org/10.54338/27382656-2021.2-1.