Conservation of irregular stone masonry in Tanais in RussiaWojciech Terlikowski, Marcin Matera, Kacper Wasilewski, Martyna Gregoriou-Szczepaniak and Ewa SobczyńskaMATEC Web Conf., 196 (2018) 02041DOI: https://doi.org/10.1051/matecconf/201819602041