Gast M, Piątkowski P, Gorzelańczyk P. Analysis of the Impact of the Effects of Modernisation of the Railway Line on the Quality of Travel on the Section Piła – Poznań. Period. Polytech. Transp. Eng. [Internet]. 2024 Jun. 20 [cited 2024 Jul. 3];. Available from: https://pp.bme.hu/tr/article/view/23361