1. Maastrichtian non-cephalopod mollusks (Scaphopoda, Gastropoda and Bivalvia) of the Middle Vistula Valley, Central Poland;Abdel-Gawad;Acta Geologica Polonica,1986
2. Development of the embryonic shell of Nautilus;Arnold,1987
3. Early evolutionary trends in ammonoid embryonic development;Baets;Evolution,2012
4. Manuel de malacologie et de conchyliologie;Blainville,1825