@article{doi:, author = {Donderski, Wojciech}, title = {Production of B-Vitamins by Heterotrophic Planktonic Bacteria Isolated from Pelagic Zone of The Lake Jeziorak}, journal = {Med J Islamic World Acad Sci}, volume = {4}, number = {1}, pages = {54-57}, year = {1991}, doi = {}, note ={doi: }, URL = {https://dx.doi.org/}, eprint = {https://dx.doi.org/} }