@article{Jahn_Alfred_80th_1991,
 author={Jahn, Alfred and Birkenmajer, Krzysztof},
 volume={vol. 12},
 number={No 3},
 howpublished={online},
 journal={Polish Polar Research},
 pages={265-268},
 year={1991},
 publisher={Polish Academy of Sciences},
 publisher={Committee on Polar Research},
 title={80th anniversary of professor Stanisław Siedlecki},
 type={Chronicle},
}