TY  - RPRT
TI  - A simple method for obtaining perforated supporting membranes for electron microscopy.
AU  - V DRAHOS
AU  - A DELONG
PY  - 1960
DO  - 10.1038/186104a0
UR  - https://pubmed.ncbi.nlm.nih.gov/13817978/
ID  - 13817978
ER  -