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Heinbockel, T.; Kaissling, K.-E.: Sensitivity and inhibition of antennal benzoic-acid receptor cells of female silkmoth Bombyx mori L. Verhandlungen der Deutschen Zoologischen Gesellschaft 83, S. 411 (1990)

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Löhrl, H.: Beobachtungen an Beutelmeisen (Remiz pendulinus) in der Voliere. Die Vogelwarte 35, S. 311 - 320 (1990)

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Rost, R.: Hormones and behavior: A joint examination of studies on seasonal-variation in song production and plasma-levels of testosterone in the great tit Parus-major. Journal für Ornithologie 131 (4), S. 403 - 411 (1990)