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journalAt: Bulletin de la Société d'Histoire Naturelle de Toulouse, 111, 112, 1-2 By: Segonzac G.
journalAt: Bulletin des Centres de Recherches Exploration-Production Elf-Aquitaine, 4, 2 By: Deloffre R.
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journalAt: Journal of the Botanical Research Institute of Texas, 14, 1 By: Poinar G. O., Chambers K. L.
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