Sleep and need for recovery in shift workers: do chronotype and age matter?
Van de Ven Hardy, Van der Klink J.J.L., Vetter C., Roenneberg T., Gordijn M.C.M., Koolhaas W., De Looze M.P., Brouwer S., Bültmann U. Sleep and need for recovery in shift workers: do chronotype and age matter? Ergonomics, 1-15 (2015).