Stefania Winiarski - Historical records and family trees - MyHeritage
Stefka - Name Meaning, What does Stefka mean?
Tchaikovsky: Pique Dame (3-CD) – Wieslaw Ochman, Stefka Evstatieva | CDS | Met Opera Shop
Tchaikovsky - Wiesław Ochman, Stefka Evstatieva, Penka Dilova, Yuri Mazurok, Stefania Toczyska, Ivan Konsulov, Svetoslav Obretenov Bulgarian National Chorus, Georgi Robev, Sofia Festival Orchestra, Emil Tchakarov – Pique Dame (1990, CD) - Discogs