The contribution of Albert Aftalion (1874–1956), Edition of Bulgarian National Bank, 2005, (in English, French and Bulgarian) From Lev to Euro: Which is the Best Way?
The contribution of Albert Aftalion (1874–1956), Edition of Bulgarian National Bank, 2005, 70 Seiten (auf Bulgarisch, Englisch und Französisch) From Lev to Euro: Which is the Best Way?