Lighting for the human circadian clock: recent research indicates that lighting has became a public health issue (PDF 187 Kb) - Stephen M. Pauley
Medical Hypotheses, 63, p. 588-596, 2004

Health disorders of shift workers (PDF 82 Kb) - Anders Knutsson
Occupational Medicine, 53, p. 103–108, 2003

Light, timing of biological rhythms, and chronodisruption in man (PDF 153 Kb) - Thomas C. Erren, Russel J. Reiter & Claus Piekarski
Naturwissenschaften, 90, p. 485–494, 2003

Health in a 24-h society (PDF 107 Kb) - Shantha M.W. Rajaratnam & Josephine Arendt
The Lancet, 358, p. 999-1005, 2001

La luz artificial y estímulos no luminosos modifican los ciclos circadianos (HTML) - Diane B. Boivin, Jeanne F. Duffy, Richard E. Kronauer & Charles A. Czeisler
Nature, 379, p. 540-542, 1996