Jurkowski, Andrzej, Jacek J. Kozioł, and Ewelina Gronczewska. “A Method to Increase the Survival of Probiotic Bacteria Lactobacillus Brevis at a Lowered PH”. Biological Letters 54, no. 1 (June 1, 2019): 13–20. Accessed March 29, 2024. https://pressto.amu.edu.pl/index.php/BIOLET/article/view/biolet-2019-0002.