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Perhaps you should try some spelling variations:
systemes penitenciaris » sistemas penitenciarios (Expand Search), sistema penitenciario (Expand Search), sistema penitenciari (Expand Search)
penitenciaris europeus » penitenciarios europeos (Expand Search), penitenciaria europea (Expand Search), penitenciaria europeia (Expand Search)
informe extraordinari » informe extraordinario (Expand Search)
estudio comparatiu » estudi comparatiu (Expand Search), estudio comparativo (Expand Search), estudio comparado (Expand Search)
europeus informe » europea informe (Expand Search), europeas conforme (Expand Search), europa informe (Expand Search)
comparatiu des » comparative des (Expand Search), comparativo del (Expand Search), comparativa del (Expand Search)
novembre 2007 » noviembre 2007 (Expand Search), noviembre 2005 (Expand Search), noviembre 2000 (Expand Search)