Project 5407: M. Nohejlová, E. Nardin, O. Fatka, L. Kašička, M. Szabad. 2019. Morphology, palaeoecology and phylogenetic interpretation of the Cambrian echinoderm Vyscystis (Barrandian area, Czech Republic). Journal of Systematic Palaeontology. 17 (19):1619-1634.