1. Atomic Force Microscope;Binnig;Physical Review Letters,1986
2. Williams C., Rocky Mountain Nanotechnology LLC website, http://rmnano.com/
3. Doezema L., Kaszuba P., Moszkowicz L., Never J., Slinkman J., U. S. Patents 6, 139,759 and 6, 198,300 B1.
4. Atomic force microscope-force mapping and profiling on a sub 100Å scale;Martin;J. Appl. Phys.,1987