@misc{Rutkowski_Jacek_Osady,
 author={Rutkowski, Jacek},
 howpublished={online},
 title={Osady vistulianu w dolinach Wisły i Skawinki w Skawinie.},
 title={Vistulian sediments in the valleys of the Vistula and the Skawinka at Skawina.},
}