Monensin-induced modifications of ionic gradients on Streptococcus faecalis. A 23Na and 31P NMR studyF Rabaste, J Guyot, G Dauphin, G Jeminet and AM DelortJ. Chim. Phys., 89 (1992) 217-225DOI: https://doi.org/10.1051/jcp/1992890217