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Three epizoic gastropods from Malaysia and the PhilippinesHans Heinrich Janssen · 1985
Histological studies onHalicryptus spinulosus(Priapulida) with regard to environmental hydrogen sulfide resistanceRolf Oeschger; Hans Heinrich Janssen · 1991
Turbellaria (Archoophora: Acoela) from Antarctic sea ice endofauna – examination of their micromorphologyHans Heinrich Janssen; Rolf Gradinger · 1999
The body wall ofHalicryptus spinulosus(Priapulida) — ultrastructure and changes induced by hydrogen sulfideHans Heinrich Janssen; Rolf Oeschger · 1992
Diversification of cadmium-binding proteins due to different levels of contamination inArion lusitanicusHans Heinrich Janssen; Reinhard Dallinger · 1991
Small cells in the midgut glands of terrestrial isopoda: Sites of heavy metal accumulationFritz Prosi; Volker Storch; Hans Heinrich Janssen · 1983
Marsupium morphology and brooding biology of the Antarctic giant isopod,Glyptonotus antarcticusEights 1853 (Crustacea, Isopoda, Chaetiliidae)Hans Heinrich Janssen; Berndt Hoese · 1993
Development and ultrastructure of spermatozoa of <i>Archaster typicus</i> Müll, and Trosch. (Echinodermata, Asteroidea)Janssen, Hans Heinrich · International Journal of Invertebrate Reproduction and Development · 1984