@ARTICLE{Elster_Josef_Preface:_2012, author={Elster, Josef and Rachlewicz, Grzegorz}, number={No 4}, journal={Polish Polar Research}, pages={289-295}, howpublished={online}, year={2012}, publisher={Polish Academy of Sciences}, publisher={Committee on Polar Research}, type={Od redakcji, artykuł wstępny /Editorial}, title={Preface: Petuniabukta, Billefjorden in Svalbard: Czech−Polish long term ecological and geographical research}, URL={http://www.journals.pan.pl/Content/99528/PDF/v10183-012-0027-y.pdf}, doi={10.2478/v10183−012−0027−y}, }