@article{Pietruszczak_2018, title={Contents of Volume 27}, volume={27}, url={https://apcz.umk.pl/LLP/article/view/18551}, DOI={10.12775/18551}, number={4}, journal={Logic and Logical Philosophy}, author={Pietruszczak, Andrzej}, year={2018}, month={Nov.}, pages={603–604} }