@misc{Harasimiuk_Marian_<The>,
 author={Harasimiuk, Marian and Superson, Józef and Szwajgier, Wojciech},
 howpublished={online},
 title={<The> influence of autogenic and allogenic factors on the evolution of lake Pniówno (the Chełm Hills, eastern Poland).},
}