Odobescu, Vlad; Vella, Matthew; Pavlovs, Sergejs; Zgaga, Blaz (19 May 2017). "The Boyko Report". blacksea.eu website. Archived from the original on 17 February 2021. Retrieved 16 February 2021.
Odobescu, Vlad; Vella, Matthew; Pavlovs, Sergejs; Zgaga, Blaz (19 May 2017). "The Boyko Report". blacksea.eu website. Archived from the original on 17 February 2021. Retrieved 16 February 2021.