Pernin, C.; Ambrosi, J.P.; Cortet, J.; Joffre, R.; Tabone, E.; Torre, F. and Krogh, P.H. (2006) Effects of sewage sludge and copper enrichment on both soil mesofauna community and decomposition of oak leaves (Quercus suber) in a mesocosm. Biology and Fertility of Soils. [ In Press , 2006] ^**