Zimnitskaya, Hanna; von Geldern, James (2011-01-01). “Is the Caspian Sea a sea; and why does it matter?” (英語). Journal of Eurasian Studies2 (1): 1–14. doi:10.1016/j.euras.2010.10.009. ISSN1879-3665.
Zimnitskaya, Hanna; von Geldern, James (2011-01-01). “Is the Caspian Sea a sea; and why does it matter?” (英語). Journal of Eurasian Studies2 (1): 1–14. doi:10.1016/j.euras.2010.10.009. ISSN1879-3665.