{\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 Ruiz R., Oregui L.M., Elgarresta M., Mariju\uc0{\u225}n S. \b Environmental and economic aspects of the dairy sheep system in the Basque Country.\b0 In : Dubeuf J.-P. (ed.). \i L'Observatoire des Syst\uc0{\u232}mes de Production Ovine et Caprine en M\uc0{\u233}diterran\uc0{\u233}e : Chiffres cl\uc0{\u233}s et indicateurs de fonctionnement et d'\uc0{\u233}volution \i0 . Zaragoza : CIHEAM, 2002. p. 39-45. (Options M\uc0{\u233}diterran\uc0{\u233}ennes : S\uc0{\u233}rie B. Etudes et Recherches; n. 39). http://om.ciheam.org/om/pdf/b39/02600036.pdf} }