Scheper, T O A model of molecular circadian clocks: multiple mechanisms for phase shifting and a requirement for strong nonlinear interactions. [electronic resource] - Journal of biological rhythms Jun 1999 - 213-20 p. digital Publication Type: Journal Article ISSN: 0748-7304 Standard No.: 10.1177/074873099129000623 doi Subjects--Topical Terms: AnimalsCircadian Rhythm--physiologyFeedbackModels, BiologicalNonlinear DynamicsProteins--metabolismRNA, Messenger--metabolism