Julia Leikin reigns supreme in, 'Russia’s Mediterranean Moment: Constellations of Sovereignty and the Making of a Region, 1770-1830' (University of Chicago Press).
'Russia’s Mediterranean Moment' can be viewed here: https://journals.uchicago.edu/eprint/AX5V8FZQPZTJDBXJUDRE/full?redirectUri=/doi/epdf/10.1086/728802.
You can also catch up on Julia’s episode of You’re Dead To Me on Catherine the Great with Greg Jenner and David Mitchell here on BBC Sounds: https://www.bbc.co.uk/programmes/m001v56w