1. La qualité biologique des sols;Chaussod;Etud. Gest. Sols.,1996
2. Microbial inoculants as crop-yield enhancers;Okon;CRC Crit. Rev. Biotech.,1987
3. Introduction of soil organisms to control root diseases;Cook,1994
4. Biopesticides contre maladies, insectes, mauvaises herbes;Silvy,1999
5. Trends in rhizobial inoculant production and use;Catroux;Plant Soil,2001