1. Organic manures in relation to rhizosphere effect. I. Effect of organic manure on the free aminoacid, reducing sugar and organic acid composition of rice and succeeding wheat rhizosphere soils;Bhattacharya;Zentalblatt für Mikrobiologie,1983
2. Phyto-toxicity of refuse compost;De Vleeschauwer;Biocycle,1981
3. Chemical determination of fatty acids, organic acids and phenoles during olive marc composting process;Estaun;Acta Horticulture,1985
4. Organic acids in soil during degradation of organic residues;Gaur,1974