Nitrogen fertilizer value of sewage sludge co-composts Khadija Bousselhaj, Saïd Fars, Abderrahmane Laghmari, Ahmed Nejmeddine, Naaila Ouazzani and Claudio CiavattaAgronomie, 24 8 (2004) 487-492DOI: https://doi.org/10.1051/agro:2004045
