@misc{indiciae43b187542467, title = {[Modification of a double-layer differential nutrient medium].}, author = {D B Rozenfel'd and T K Khramtsova and L M Ryndina and A A Fedorova and P N Baklanova}, year = {1980}, url = {https://pubmed.ncbi.nlm.nih.gov/6158619/}, note = {Source identifier: 6158619} }