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- Lee, G.E.M. van der (author), Penning, W.E. (author), Duel, H. (author), Boogaard, H.F.P. van den (author) report 2003
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- Haasnoot, M (author), Ververs, M. (author), Duel, H. (author) report 2002
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- Lee, G.E.M. van der (author), Geilen, N. (author), Duel, H. (author), Penning, W.E. (author) report 2002
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- Haasnoot, M. (author), Ververs, M. (author), Duel, H. (author) report 2002
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Duel, H. (author), Baptist, M.J. (author), Penning, W.E. (author)A new strategy based on floodplain measures for both flood risk management and enhancement of the biodiversity of the river Rhine.report 2001
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- Lee, G.E.M. van der (author), Klijn, F. (author), Duel, H. (author) report 2001
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- Lee, G.E.M. van der (author), Duel, H. (author), Groot, S. (author), Aarts, H. (author), Pouwels, R. (author) report 2000
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- Most, H. van der (author), Kors, A.G. (author), Duel, H. (author) report 1999
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- Pedroli, G.B.M. (author), Duel, H. (author), Vonk, M. (author) report 1998
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- Duel, H. (author), Heest, F. van (author), Hick, L. (author), Jansen, J. (author), Marchand, M. (author) report 1997
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- Duel, H. (author), Heest, F. van (author), Hick, L. (author), Jansen, J. (author), Marchand, M. (author) report 1997
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- Duel, H. (author), Gondrie, A.G.L. (author), Laane, W.E.M. (author), Vries, M.B. de (author) report 1996
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- Duel, H. (author), Pedroli, G.B.M. (author) report 1995
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- Duel, H. (author), Gondrie, A.G.L. (author), Pedroli, G.B.M. (author) report 1995
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- Wang, Z.B. (author), Duel, H. (author), Glas, P.C.G. (author) report 1995
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- Duel, H. (author), Arts, G. (author), Buskens, R. (author), Pedroli, G.B.M. (author) report 1995