TY  - RPRT
TI  - The SFG (solid, fragmented, granular) index for bacterial morphology.
AU  - D S Ridley
PY  - 1971
DO  - 10.5935/0305-7518.19710011
UR  - https://pubmed.ncbi.nlm.nih.gov/4948482/
ID  - 4948482
ER  -