Essay in Environmental Design, a journal dedicated to promoting and coordinating higher studies and research in the field of architecture, and urban and rural planning pertaining to the Islamic world.
Bernardini, Michele. " Note sur la "Porte de fer" près de Termez (Darband/Qahalgha).” In Environmental Design: Journal of the Islamic Environmental Design Research Centre 1-2, edited by Attilo Petruccioli, 160-163. Rome: Dell’oca Editore, 1997-1999.
Islamic Environmental Design Research Centre