*[https://www.youtube.com/@smoothieX12/videos smoothieX12], [https://www.claritypress.com/book-author/andrei-martyanov/ Andrei Martyanov], former Russian naval officer living in the [[United States]].
*[https://www.youtube.com/@smoothieX12/videos smoothieX12], [https://www.claritypress.com/book-author/andrei-martyanov/ Andrei Martyanov], former Russian naval officer living in the [[United States]].