{\rtf\ansi\deff0 {\fonttbl{\f0 Times New Roman;}} {\colortbl;\red0\green0\blue0;} {\info } \paperw11907 \paperh16443 \deftab1298 \margl1701 \margr1701 \margt567 \margb1134 \pgnstart1\ftnnar \aftnnrlc \ftnstart1 \aftnstart1 \pard \ql {\fs24 \i GREMPA, colloque 1985\i0 . Paris : CIHEAM, 1985. 123 p. (Options M\uc0{\u233}diterran\uc0{\u233}ennes : S\uc0{\u233}rie Etudes; n. 1985-I). Sur les Aspects de l'Am\uc0{\u233}lioration, d.l.C.e.d.l.P.d.l.A., 1985/06/10-14, Thessalonique (GRC). http://om.ciheam.org/om/pdf/s09/s09.pdf} }