Balabekova К., Zabieva А. and Orazalina А. 2023. Research of railway gauge modification systems. Bulletin of L.N. Gumilyov Eurasian National University Technical Science and Technology Series. 144, 3 (Sep. 2023), 143–153. DOI:https://doi.org/10.32523/2616-7263-2023-144-3-143-153.