1. Micromomentary facial expressions as indicators of ego mechanisms in psychotherapy;Haggard,1966
2. Telling Lies: Clues to Deceit in the Marketplace, Politics, and Marriage;Ekman,2009
3. What the Face Reveals: Basic and Applied Studies of Spontaneous Expression Using the Facial Action Coding System (FACS);Ekman,1997
4. The Micro Expression Testhttp://www.microexpressionstest.com/micro-expressions-test/
5. Universality Revisited