1. Methods for the study of nitrogenase activity in field grown grasses;Abrantes;Bulletin International d'Informations Biologie du Sol,1975
2. Mesure de l'activité nitrogénique des microorganisms fixateurs libres d'azote de la rhizosphere de quelques graminees;Balandreau;Revue d'Ecologie et de Biologie du Sol,1975
3. Diural variations of nitrogenase activity in the field;Balandreau;Applied Microbiology,1974
4. A modelling approach of acetylene reducing activity of plant-rhizosphere diazotroph systems;Balandreau,1977
5. Acetylene reduction (nitrogen fixation) associated with corn inoculated with Spirillum lipoferum;Barber;Applied and Environmental Microbiology,1976