The Cyrillo-Methodian Mission, Nitra and Constantine the Philosopher University
https://www.academia.edu/6858279/The_Cyrillo-Methodian_Mission_Nitra_and_Constantine_the_Philosopher_University
https://www.academia.edu/6858279/The_Cyrillo-Methodian_Mission_Nitra_and_Constantine_the_Philosopher_University
Stredoveká cestná sieť na Pohroní a Poiplí
Martin Hetényi Slovensko-maďarské pomedzie v rokoch 1939 – 1945