Dioklet︠s︡ian i spasi︠a︡vaneto na rimskii︠a︡ t︠s︡evilizat︠s︡ionen modelAtanas Orachev · First published 2018Open the Tome
Bulgaria in the European Cartographic Concepts Until XIX CenturyAtanas Orachev · First published 2005Open the Tome
Strandzha--drevnost i sŭvremieIvanichka Georgieva, Dimitŭr Popov, Atanas Orachev · First published 1990Open the Tome
