(FT, Rompres, Nine o'Clock, Ziarul Financiar - 02/04/07, AP, Reuters, DPA, Mediafax, Πρακτορείο Ειδήσεων Σόφιας - 01/04/07)
(FT, Rompres, Nine o'Clock, Ziarul Financiar - 02/04/07; AP, Reuters, DPA, Mediafax, Sofya Haber Ajansı - 01/04/07)