Features of urban agglomerations formation in the system of the Black Sea region Iryna Azhaman, Olha Kambur, Anastasiia Pandas, Nataliia Petryshchenko and Nataliia Serohina SHS Web of Conf., 92 (2021) 07005 Published online: 13 January 2021 DOI: 10.1051/shsconf/20219207005