1. La simbiosis Rhizobium–Prosopisen el chaco árido Argentino;Abril;Rev. Argent. Microbiol.,1994
2. Early growth rate and nitrogen fixation potential in 44 legume species grown in an acidic and a neutral soil from central Chile;Aronson;For. Ecol. Manage.,1992
3. Arp, D.J., 1992. Hydrogen Cycling in Symbiotic Bacteria. In: Stacey, G., Burris, R.H., Evans, H.J. (Eds.), Biological Nitrogen Fixation. Chapman & Hall, New York, London, pp. 432–460.
4. Réexamen des critères de sélection des souches de Rhizobium utilisées en agriculture;Diem;Bull. Soc. Fr. Microbiol.,1993
5. Nodulaçao e fixaçao de nitrogenio em leguminosas florestais;Döbereiner;Braz. J. Agric. Res.,1984