Dolia, Kostiantyn, Yuri Davidich, Olena Dolia, Sergey Lyfenko, and Olena Uhodnikova. 2017. “Modeling of Polygons of Maximum Passenger Route Transport Accessibility by the Example of the Transport System of Ukraine”. Technology Audit and Production Reserves 6 (2(38):28-33. https://doi.org/10.15587/2312-8372.2017.115219.