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Koichi YONEYAMA
Weed Control Research Institute, Faculty of Agriculture, Utsunomiya University
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Makoto KONNAI
Weed Control Research Institute, Faculty of Agriculture, Utsunomiya University
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Tetsuo TAKEMATSU
Weed Control Research Institute, Faculty of Agriculture, Utsunomiya University
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Shigeo YOSHIDA
Institute of Physical and Chemical Research
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Nobutaka TAKAHASHI
Institute of Physical and Chemical Research
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Wilfrid D. CROW
Department of Forestry, The Australian National University