Petrova, Desislava, and Lyubomir Lazov. 2020. “HIGHER EDUCATION IN THE REPUBLIC OF BULGARIA AT THE CROSSROAD - PROBLEMS AND MEASURES TO PREVENT THEM”. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 2 (May): 214-26. https://doi.org/10.17770/sie2020vol2.5158.