Venediktov HL, Harbaruk VV, Herasymenko PV. RESEARCH METHODOLOGY OF RATIONAL RELATION BETWEEN THE PRICES OF TICKETS IN CARS OF DIFFERENT CLASSES OF HIGH-SPEED TRAINS. STP [Internet]. 2007Feb.25 [cited 2024Jul.17];(14):243-7. Available from: https://stp.ust.edu.ua/article/view/18171