@misc{Jankowski_Andrzej_W._An_1982, author={Jankowski, Andrzej W.}, volume={30}, editor={Polska Akademia Nauk.}, editor={Państwowe Wydawnictwo Naukowe (1951–1992)}, number={1-2}, copyright={Rights Reserved - Restricted Access}, address={Varsovie}, howpublished={online}, year={1982}, publisher={Państwowe Wydawnictwo Naukowe}, language={eng}, title={An alternative characterization of elementary logic}, type={Text}, }