Barjer
Pavel Vezhinov (November 9, 1914 - December 2, 1983, born Nikola Delchev Gugov, was a Bulgarian Science Fiction writer. He was one of the very first Bulgarian Science Fiction authors, writing many books, articles and movie scripts. Vezhinov is perhaps best known for his 1977 novel Barierata (Barrier), written after the death of his first wife. He is also one of the authors to be taught in Bulgarian schools.