Pictures and music from Bulgaria [electronic resource] : Virtual travelling through wonderful Bulgarian places with exiting ethno music. Over 150 images of mountains, rivers, sea coast, natural reserves, ancient monuments, towns and monasteries / produced a. pictures taken by Georgy Velichkov ; music composed by Nikolay Ivanov. - [S.l. : Bulgaran Real Estate Agency, S.d.]. - 1 compact disk (CD-ROM) ; 12 cm.[MFN: 2823]