By Jakob, Matthias, Hungr, Oldrich
By Josep G. Canadell, Diane E. Pataki, Louis F. Pitelka
By A. Page
By P. L. Woomer, M. J. Swift
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By Ellis, Derek
By Bridge, John, Demicco, Robert
By Winter, E.J.
By Dent, David, Young, Anthony
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By Maurice E. Tucker
By Quarrell, C.P., Ace, G.W.
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By Wild, Alan
By Leeder
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By Hantschel, Thomas, Kauerauf, Armin I.
By Alsop, G. I., Archer, S., Hartley, A. J., Grant, N., Hodgkinson, R.
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By Ware, George W.
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