TY  - RPRT
TI  - Perturbing Hele-Shaw flow with a small gap gradient.
AU  - H Zhao
AU  - J Casademunt
AU  - C Yeung
AU  - JV Maher
PY  - 1992
DO  - 10.1103/physreva.45.2455
UR  - https://pubmed.ncbi.nlm.nih.gov/9907268/
ID  - 9907268
ER  -