. "Kristensen (1980)" . . "1980"^^ . . "1980"^^ . "Kristensen, R.M. 1980. Zur Biologie des marinen Heterotardigraden Tetrakentron synaptae. Helgolaender Meeresuntersuchungen, 34(2): 165-177.
" . "Kristensen (1980)" .