@misc{indiciaed1fb822f3667, title = {Polystyrene spheres in electron microscopy.}, author = {D Karamata}, year = {1971}, doi = {10.1016/s0022-5320(71)80152-1}, url = {https://pubmed.ncbi.nlm.nih.gov/5557679/}, note = {Source identifier: 5557679} }