Sawomir Cenckiewicz and Piotr Gontarczyk, SB a Lech Wasa: Przyczynek do biografii [The SB and Lech Wasa: A Contribution toward a Biography]
@article{Szporer2009SawomirCA,
title={Sawomir Cenckiewicz and Piotr Gontarczyk, SB a Lech Wasa: Przyczynek do biografii [The SB and Lech Wasa: A Contribution toward a Biography]},
author={Michael Szporer},
journal={Journal of Cold War Studies},
year={2009},
volume={11},
pages={119-121}
}