Causes of the persecution of Christians under the emperor Decius (249 – 250).
Trading activities in the Zips region (15. – 17. century).
The primary problems of transformation of secondary and vocational schools in Slovakia after 1918 with emphasis on education in the Košice.
Czechoslovak automotive history in 1918 – 1948 and their economical, technical, culturological and sociological aspects in the Czech and Slovak historiography.
National educational system of Ruthenians and Ukrainians in Slovakia (1945 – 1970) in the historiography.
Reviews and anotations
RYBÁŘOVÁ, Petra. Antisemitizmus v Uhorsku v 80. rokoch 19. storočia. Bratislava : Spoločnosť Pro Historia, 2010. ISBN 978-80-970060-7-5. 186 strán.
Report from the International Scientific Conference “Development of the Scientific Research of the Carpathian Mountains in 18th – 20th Century” Stará Lesná, Juny 7th – 9th, 2012
Report from the Scientific Conference “Czech, Slovak and Czechoslovak History in 20th Century, VII.” Hradec Králové, April 3rd – 4th, 2012
Report from the Scientific Conference “Slovakia in the Lack-of-Freedom Era 1938–1939, II.” Banská Bystrica, May 22nd – 23rd, 2012
Defended Dissertation Thesis