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1993, Report
1997, Book section
1989, Report
Ministère de l'Agriculture
1997, Book section
1997, Book section
1997, Book section
1997, Book section
1997, Book section
1992, Book section
1997, Book section
1993, Book section
1997, Book section
1997, Book section
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1997, Book section
1997, Book section
1997, Book section
1996, Book section
1997, Book section
1994, Book section
A. Achi
2004, Conference proceedings
A. Chetaille and S. Guéneau and Y. Jadot
1999, Report