@ARTICLE{Radwańska_Urszula_A_2014,
 author={Radwańska, Urszula},
 volume={vol. 64},
 number={No 3},
 journal={Acta Geologica Polonica},
 howpublished={online},
 year={2014},
 publisher={Komitet Nauk Geologicznych PAN},
 publisher={Wydział Geologii UW},
 title={A Monograph of the Polish Oxfordian Echinoids: Part 2, Subclass Euechinoidea Bronn, 1860},
 URL={http://journals.pan.pl/Content/81946/PDF/04_radwanska.pdf},
 doi={10.2478/agp-2014-0017},
}