Evropa mezhdu revoli︠u︡t︠s︡ii i reformiKhristo Glushkov, Valentin Atanasov Spiridonov, Simeon A. Simeonov · First published 2014Open the Tome
Modernii͡at istorik 2Radoslav Mishev, Khristo Glushkov, Valentin Atanasov Spiridonov · First published 2011Open the Tome
