@book{5074,
	author = {Piekałkiewicz, Janusz  and Piekałkiewicz, Janusz},
	title = {Polenfeldzug :},
	publisher = {Lübbe},
	year = {1982},
	address = {Bergisch Gladbach},
	url = {https://d-nb.info/830108580/04}
}