TY  - RPRT
TI  - Polystyrene spheres in electron microscopy.
AU  - D Karamata
PY  - 1971
DO  - 10.1016/s0022-5320(71)80152-1
UR  - https://pubmed.ncbi.nlm.nih.gov/5557679/
ID  - 5557679
ER  -