Kustu, S., Santero, E., Keener, J., Popham, D., & Weiss, D. (1989). Expression of sigma 54 (ntrA)-dependent genes is probably united by a common mechanism.

Kustu, S., E. Santero, J. Keener, D. Popham, and D. Weiss. Expression of Sigma 54 (ntrA)-dependent Genes Is Probably United By a Common Mechanism. 1989.

Kustu, S., et al. Expression of Sigma 54 (ntrA)-dependent Genes Is Probably United By a Common Mechanism. 1989.