@article{doi:, author = {Donderski, Wojciech and Sokol, Malgorzata}, title = {Production of B-Vitamins by Heterotrophic Planktonic Bacteria Isolated from Littoral Zone of The Lake Jeziorak}, journal = {Med J Islamic World Acad Sci}, volume = {3}, number = {3}, pages = {209-213}, year = {1990}, doi = {}, note ={doi: }, URL = {https://dx.doi.org/}, eprint = {https://dx.doi.org/} }