Title:Impact of the ISO 9001:2000 standard on countries competitiveness / Estudio del impacto de la certificación ISO 9001:2000 en la competitividad-país
Title:Cultural conditions required for the induction of an adaptive acid-tolerance response (ATR) in Sinorhizobium meliloti and the question as to whether or not the ATR helps rhizobia improve their symbiosis with alfalfa at low pH