@ARTICLE{Machalski_Marcin_Oyster-bioimmured_2013,
 author={Machalski, Marcin and Kennedy, William J.},
 volume={vol. 63},
 number={No 4},
 journal={Acta Geologica Polonica},
 howpublished={online},
 year={2013},
 publisher={Komitet Nauk Geologicznych PAN},
 publisher={Wydział Geologii UW},
 title={Oyster-bioimmured ammonites from the Upper Albian of Annopol, Poland: stratigraphic and palaeobiogeographic implications},
 URL={http://journals.pan.pl/Content/81923/PDF/07_machalski.pdf},
 doi={10.2478/agp-2013-0024},
}