@ARTICLE{_Contents_2018,
 number={No 25},
 journal={Papers on Global Change IGBP},
 howpublished={online},
 year={2018},
 publisher={Polish Academy of Sciences},
 type={Contents},
 title={Contents},
 URL={http://czasopisma.pan.pl/Content/109989/PDF/1%20CONTENTS.pdf},
}