[[1] Kristev, T., O. Parunin, A. Svitoch. Radiouglerodnaya hronologia noveyshih otlozheniy poberezhyya i shelyfa bolgarskogo sektora Chernogo morya. - V: Geologicheskaya эvolyutsia zapadnoy chasti Chernomorskoy kotlovinы v neogen-chetvertichnoe vemya. S., BAN, 1990, 202-210]Search in Google Scholar
[[2] Popov, V., K. Mishev. Geomorfologia na balgarskoto chernomorsko kraybrezhie i shelf. S., BAN, 1974, 266 s.]Search in Google Scholar
[[3] Fedorov, P. V., D. A. Lilienberg, Vl. Popov. Novыe dannыe o terrasah Chernomorskogo poberezhyya Bolgarii. - Dokl. AN SSSR, 1962, 144, 2]Search in Google Scholar
[[4] Krastev, T. Strukturno geomorfolozhko razvitie na konti-nentalnata okraynina ot balgarskia sektor na Cherno more, Disertatsionnen trud, 1993.]Search in Google Scholar
