From the Predeal Pass to the Kurovské Sedlo : battles in the Eastern Carpathians in 1944 / Jozef Bystrický et al. – 1st ed. – Bratislava: Military Historical Institute, 2011. – ill. ill. res. – 389 p. ; 25 cm. – ISBN 978-80-89523-07-8.
Eastern Carpathians / Dionýz Dugas. – 1st ed. – Martin : Osveta, 1984. – + color add., + add. foreign texts. – 189 p.
Geology of the East Slovak Flysch / Bartolomej Leško. – 1st ed. – Bratislava: SAS, 1968. – 245 p.
The Eastern Carpathian Border Region in the Context of the Carpathian Euroregion / Boris Ottmar; consultant Vladimír Drgoňa. – Nitra: University of Constantine the Philosopher, 2002. – + appendices – 79 p.
Diversity of spider communities (Araneae) and its changes in different types of non-forest landscapes of the Bukovské vrchy / Pavel Žila ; Supervisor Peter Gajdoš, Opponent Miroslav Krumpál, Opponent Zdeněk Majkus, Opponent Ivan Mihal. – Nitra : University of Constantine the Philosopher in Nitra, 2015. – + appendices – 132 p. ; 30 cm.
Invertebrates (Evertebrata) of wet meadows in the Poloniny National Park / Daniel Radovnický ; Supervisor Pavel Žila, Opponent Katarína Janeková. – Nitra : University of Constantine the Philosopher in Nitra, 2015. – + appendices – 48 p. ; 30 cm.
Landscape potential of the Poloniny National Park / Jana Michalcová ; Supervisor František Petrovič ; Opponent Juraj Hreško. – Nitra: University of Constantine the Philosopher in Nitra, 2010. – bv txt. – 60 p. ; 30 cm.
Geographical excursion in Upper Zemplín / Radoslava Roštárová ; Supervisor Lucia Šolcová, Opponent Katarína Vilinová. – Nitra : University of Constantine the Philosopher in Nitra, 2015. – + appendices – 80 p. ; 30 cm.