(Seeurope.net, Mediapool - 18/02/02, bTV - 15/02/02, ΡΕΕ/ΡΕ - 04/02/02, ΔΝΤ, Πηγές της βουλγαρικής κυβέρνησης)
(Seeurope.net, Mediapool - 18/02/02; bTV - 15/02/02; RFE/RL - 04/02/02; IMF, burime të qeverisë bullgare)