@book{Frank+2022,
url = {https://doi.org/10.3790/9783428469703},
title = {Auswirkungen von Fahrpreisänderungen im öffentlichen Personennahverkehr},
title = {},
author = {Willy Frank},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428469703},
isbn = {9783428469703},
year = {1990},
lastchecked = {2022}
}