Home › Authors › Bori͡ana Velcheva 👤 Bori͡ana Velcheva 3 books Books by Bori͡ana Velcheva Proto-Slavic and Old Bulgarian Proto-Slavic and Old Bulgarian sound changes 1988 Starite bŭlgarski rŭkopisi i t Starite bŭlgarski rŭkopisi i tekhnii͡at ezik 1983 Dobromirovo evangelie Dobromirovo evangelie 1975