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Die Naturwissenschaften|March 1, 1992
[Research under reduced gravity. Part II: experiments in variable gravitational fields]D Volkmann, A Sievers
Proceedings of the Royal Society of London. Series B, Biological Sciences|December 30, 1977
Ultrastructure of gravity-perceiving cells in plant rootsA Sievers, D Volkmann
Die Naturwissenschaften|February 1, 1992
[Research under reduced gravity. Part I: bases of gravitational biology]D Volkmann, A Sievers
Planta|November 20, 2013
Membrane-potential responses following gravistimulation in roots of Lepidium sativum LH M Behrens, D Gradmann, A Sievers
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