César Cui (1835-1918)
https://www.8notes.com/biographies/cui.asp
David Ruffin (1941–1991)
https://www.biography.com/people/david-ruffin-21174455
César Cui (1835-1918)
https://www.8notes.com/biographies/cui.asp
David Ruffin (1941–1991)
https://www.biography.com/people/david-ruffin-21174455