Rebecca L. Hoover-Fitzula Azcarate-Peril, M. A., Altermann, E., Hoover-Fitzula, R. L., Cano, R. J., & Klaenhammer, T. R. (2004). Identification and inactivation of genetic loci involved with Lactobacillus acidophilus acid tolerance. APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 70(9), 5315–5322. https://doi.org/10.1128/AEM.70.9.5315-5322.2004