Conservation of irregular stone masonry in Tanais in Russia Wojciech Terlikowski, Marcin Matera, Kacper Wasilewski, Martyna Gregoriou-Szczepaniak and Ewa Sobczyńska MATEC Web Conf., 196 (2018) 02041 Published online: 03 September 2018 DOI: 10.1051/matecconf/201819602041