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[Anonymous], 1909, VERHANDLUNGEN DTSCH
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Experimentally induced transitions in the morphological characters of Asplanchna amphora hudson, together with remarks on sexual reproduction
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NUSSBAUM M, 1897, ARCH MIKR ANAT ENTW, V49, P227
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Papanicolau Georg, 1910, Biologisches Zentralblatt Leipzig, V30
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POWERS JH, 1912, AM NAT, V47, P526
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Studies in the life cycle of Hydatina senta II the role of temperature of the chemical composition of the medium, and of internal factors upon the ratio of parthenogenetic to sexual forms
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JOURNAL OF EXPERIMENTAL ZOOLOGY,
1911, 10 (02)
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Studies in the life cycle of hydatina senta III Internal factors influencing the proportion of male-producers
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JOURNAL OF EXPERIMENTAL ZOOLOGY,
1912, 12 (02)
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