Literature
  • 1979b
  • Nematocysts in the Phialidium medusae of Clytia hemisphaerica (Hydrozoa, Campanulariidae) studied by light and scanning electron microscopy. Zoon 7: 125-142.
  • 1990
  • Review of the physical oceanography of the North Sea. Netherlands Journal of Sea Research, 26: 161-238.