TY  - RPRT
TI  - A comparison of different focus functions for use in autofocus algorithms.
AU  - F C Groen
AU  - I T Young
AU  - G Ligthart
PY  - 1985
DO  - 10.1002/cyto.990060202
UR  - https://pubmed.ncbi.nlm.nih.gov/3979220/
ID  - 3979220
ER  -