1. Standard Methods for the Examination of Water and Wastewater;American Public Health Association (APHA),1985
2. Microbiologia della trasformazione dei rifiuti solidi urbani in compost e loro utilizzazione in agricoltura;De Bertoldi;Ingegneria Ambientale,1980
3. Lethal temperatures of soil fungi;Bollen,1984
4. Cellulose degradation: a common link;Dunlap,1980
5. Composting microbial ecosystem: implication for design and control;Finstein;Biocycle,1980