Georgiev, M., 		Baltadjieva, M., 		Goranov, B., 		Brazkova, M., & 		Krastanov, A.
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 Investigation of the probiotic properties and the acid production rate of strains Lactobacillus delbrueckii ssp. Bulgaricus.
<em>Food Science And Applied Biotechnology, 2</em>(2), 149-158.
doi:10.30721/fsab2019.v2.i2.58