Рубинен саламандърChris Rippen, Alek Popov, Georgi Velichkov, Donka Petrunova, Nina Panteleeva, Radoslav Mladenov · First published 2003Open the Tome
Rusii͡a︡ protiv Stambolov ili Stambolov protiv Rusii͡a︡Radoslav Popov · First published 2000Open the Tome
Bŭlgarii︠a︡ v avstro-ungarskite diplomaticheski dokumenti, 1879-1885Elena Boi︠a︡nova Statelova, Radoslav Popov · First published 1993Open the Tome
Stefan Stambolov i negovoto vremeElena Boi︠a︡nova Statelova, Radoslav Popov · First published 1993Open the Tome
Sŭedinenieto 1885Elena Boi︠a︡nova Statelova, Radoslav Popov, Doĭno Doĭnov · First published 1985Open the Tome
Spomeni za obi︠a︡vi︠a︡vane na nezavisimostta na Bŭlgarii︠a︡ 1908Radoslav Popov, Elena Boi︠a︡nova Statelova · First published 1984Open the Tome
Velikite sili i balkanskite vzaimootnoshenii︠a︡ v krai︠a︡ na XIX i nachaloto na XX v.Simeon Dami︠a︡nov, Radoslav Popov · First published 1982Open the Tome
Spomeni za sŭedinenieto ot 1885 g.Elena Boi︠a︡nova Statelova, Radoslav Popov · First published 1980Open the Tome
Bŭlgarii︠a︡ 1903-1918, kulturno razvitie 1878-1918Georgi Markov, Radoslav Popov, Mikhail Andreev · First published 1979Open the Tome
Avstro-Ungarii͡a︡ i reformite v Evropeĭska Turt͡s︡ii͡a︡Radoslav Popov · First published 1974Open the Tome
Avstro-Ungarii︠a︡ i reformite v Evropeĭska Turt︠s︡ii︠a︡, 1903-1908Radoslav Popov · First published 1974Open the Tome
