1. E. P. Bakker, in “Alkali Cation Transport Systems in Prokaryotes,” ed. by E. P. Bakker, CRC Press, Boca Raton, 1993, pp. 205–224.
2. E. P. Bakker, in “Alkali Cation Transport Systems in Prokaryotes,” ed. by E. P. Bakker, CRC Press, Boca Raton, 1993, pp. 253–276.