Derkacheva, Ludmila Nikolaevna, Alexander Borisovish Kosolapov, Elena Vasilevna Galenko, and Elena Vladimirovna Makartseva. 2016. “Marine Tourism in the South East of Russia: The State and Development Tendencies”. International Review of Management and Marketing 6 (4):673-76. https://econjournals.com./index.php/irmm/article/view/2865.