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by Fuchs, Jurgen; Mickelsson, Jouko; Rozenblioum, Grigori; et al.
by Lockyer, J. Norman
by Martin R. Speight (University of Oxford); Mark D. Hunter (University of Michigan); Allan D. Watt (Centre for Ecology and Hydrology, Edinburgh, UK)
by The Seybert Commission, Seybert Commissi
by Litvinov, G. L.; Sergeev, S. N.
by Hogg, Alan J.
by Michalak, Rudi
by North Dakota State University
by Grandin, Temple; Johnson, Catherine
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