On 26.07.2022 at Todor Kableshkov University of Transport, a public defense of the dissertation of Master Eng. Irena Petrova was held on the topic: “Models for the stage development of the transport infrastructure” for the award of doctorate in the field of higher education 5. ” Technical Sciences”, professional direction 5.5. “Transport, Shipping and Aviation”, scientific specialty “Transport systems and transport technologies” with scientific director Prof. Dr. Eng. Dimitar Dimitrov. 11 22 33
