@article{781e06f6-e4a3-4e1d-922b-87e751d95172,
author = {Karol Kowalczyk},
title = {Wprowadzenie},
journal = {Prace Komisji Geografii Komunikacji PTG},
volume = {2017},
number = {20 (4)},
year = {2017},
issn = {1426-5915},
pages = {5-6},keywords = {},
abstract = {},
doi = {},
url = {https://ejournals.eu/czasopismo/pkgkptg/artykul/wprowadzenie-22}
}