1.7
   
       
Reppert, S. M., and Weaver, D.R (2002) Coordination of circadian timing in mammals. Nature. 418, 935-941. Scibler, U., and Sassone-Corsi,  (2002) A web of circadian pacemakers. Cell 111, 919-922
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 "Changing: on the Biodynamics of Moral Courage"