The genus Pygmaeocrinus BOUŠKA, 1947 (Crinoidea, Inadunata) in the Devonian of the Barrandian Area (Czech Republic) Rudolf Prokop , Václav Petr 1997 | volume 53 | issue 1-2 | pages 1–10 PDF
The spider fauna of Bohemian peat-bogs. Check-list of spider species found in the peat-bogs of the Šumava Mts. Region Antonín Kůrka 1997 | volume 53 | issue 1-2 | pages 11–35 PDF
