1995 Guyana
Authors: Ek, R.C.
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1994 Guyana
Authors: Jetten, V.G.
Authors: Brunner, M., Kucera, L.J. and Zarcher, E.
1994 Colombia
Authors: Useche, M.
1994 General
Authors: Eikelboom, K.G. and Janssen, B.H.
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