For citations:
Shcheglov D.A. The Black Sea in Ptolemy’s Geography: from Measuring Latitudes and Distances to Creating a Map. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2019;(4):125-136. (In Russ.) https://doi.org/10.31857/S2587-556620194125-136