Anna Vissi & Sofia Karvela: Kolla to (Music Video 1993) - IMDb

Anna Vissi & Sofia Karvela: Kolla to: Directed by Giannis Petropoulos. With Anna Vissi, Sofia Karvela.

Anna Vissi and Nikos Karvelas unite their voices after 20 years – Greek City Times

Ode to the Gods

Nikos Karvelas - Vikipedi

Sofia Karvela - IMDb

Anna Vissi - Wikipedia

AV Life - Timeline

Sofia Karvela - IMDb

Sofia Karvela - IMDb

Live! (Anna Vissi album) - Wikipedia

Giannis Petropoulos - IMDb

Anna about being a singer for 20 years

Σοφία Καρβέλα Άννα Βίσση - Κόλλα Το!

Anna Vissi and Nikos Karvelas unite their voices after 20 years – Greek City Times