@ARTICLE{Grajewski_Sylwester_Seasonal_2014,
 author={Grajewski, Sylwester and Miler, Antoni T. and Okoński, Bernard},
 number={No 21},
 journal={Journal of Water and Land Development},
 howpublished={online},
 year={2014},
 publisher={Polish Academy of Sciences; Institute of Technology and Life Sciences - National Research Institute},
 title={Seasonal Variability of Ground Water Levels in the Puszcza Zielonka Forest},
 URL={http://journals.pan.pl/Content/90110/mainfile.pdf},
}