TY  - RPRT
TI  - van der Waals force between a spherical tip and a solid surface.
AU  - C Girard
AU  - Van Labeke D
AU  - JM Vigoureux
PY  - 1989
DO  - 10.1103/physrevb.40.12133
UR  - https://pubmed.ncbi.nlm.nih.gov/9991842/
ID  - 9991842
ER  -