author | date | title | journal / publication | Rieger RM, Sterrer W | 1975 | New spicular skeletons in Turbellaria, and the occurence of spicules in marine meiofauna. | Z zool Syst Evolutionsforsch 13:207-278. [doi: 10.1111/j.1439-0469.1975.tb00509.x goto] |
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