@book{UBHD-1475747, editor={Ubaghs, Georges}, title={Pt. T. Echinodermata 2}, publisher={Geological Society of America}, address={New York}, year={1978}, pages={S. 404 - 812}, language={eng}, isbn={0-8137-3021-X and 978-0-8137-3021-9}, library={UB [Signatur: UBN/TS 1000 T784]}, }