@article{ICF Diametros_2008, title={Acknowledgements (in Polish)}, url={https://diametros.uj.edu.pl/diametros/article/view/325}, DOI={10.13153/diam.18.2008.325}, number={18}, journal={Diametros}, author={ICF Diametros, Redakcja}, year={2008}, month={Dec.}, pages={130} }