@Book{ 001526251, title = {Thracian, Greek, Roman and Medieval Cities, Residences and Fortresses in Bulgaria}, editor = {Ivanov, Rumen Teofilov, 1956-}, location = {Sophia}, publisher = {Ratiaria Semper Floreat}, year = {2015}, crossref = {https://zenon.dainst.org/Record/001526251}, url = {https://zenon.dainst.org/Record/001526251}, urldate ={2024-03-28}, language = {english}, }