Варненски свободен университет "Черноризец Храбър"
Ivan Roustchev (2023)
et al.; Oleh Kolodiziev (2024)
Karolina Vitanova (2023)
Aleksandar Dimitrov (2020)
Kiril Dimitrov; Ivaylo Ivanov (2020)
Daniela Nikolaeva Koch-Kozhuharova; Kalina Ishpekova-Bratanova (2019)