A Cobalt Requirement for Symbiotic Growth of Azolla filiculoides in the Absence of Combined Nitrogen

por Johnson, Gordon V., Mayeux, Patricia A., Evans, Harold J.
Publicado 1966

EFFECT OF COBALT ON THE OXIDATION OF PROPIONATE BY RHIZOBIUM MELILOTI

por De Hertogh, A. A., Mayeux, Patricia A., Evans, Harold J.
Publicado 1964