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Licence | Public Domain Mark | Usage | Available for free download. In the event of reproduction or exploitation of the document or parts thereof, the holding institution asks you, in accordance with usual scientific practices, to provide:
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| Reference | Overton, Charles Ernest: Beitrag zur Kenntniss der Gattung Volvox. Cassel : Gotthelft, 1889. Zentralbibliothek Zürich, NB 585: c,11, http://doi.org/10.3931/e-rara-48057 / Public Domain Mark |
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