[hippee-lee]

I don't have a link but I do have a bit of (dated) experience that may be relevant.

Back a while ago I worked to pay for college. One of the several jobs I held was as CNA (Certified Nursing Assistant). Before they let you do the job there was a class you had to complete and one of the skills that you got tested on was washing your hands. Because, the first thing you did upon entering a room was to wash your hands and the last thing you did before leaving it was to wash your hands.

The process was as follows: set paper towel dispenser with 8-8 inches of paper towel so it is ready. turn on water to very hot. Wet hands and apply soap. Work soap into a lather for at least a minute and pay attention to make sure all surface areas of the hands and wrists are thoroughly scrubbed. Rinse under the hot water and tear off the paper towel. Use the paper towel to grab and dispense more paper towels for drying the hands. Once hands are dry, use the paper towels to turn off the faucet.

The keys to washing hands well seem to be related to water temperature and the length and vigorousness that is applied to the scrubbing. Once hands are in a 'clean' state the key to keeping them clean is to avoid contact with anything 'dirty'. I don't have a citation but if you really want something related to the measured effectiveness of hand washing techniques I am sure I could find some studies on pub med if you need them.