TY  - RPRT
TI  - A thermal apparatus for developing a sensitive, stable and linear density gradient.
AU  - W Fong
PY  - 1971
DO  - 10.1016/s0015-7368(71)70671-9
UR  - https://pubmed.ncbi.nlm.nih.gov/5143838/
ID  - 5143838
ER  -