Timothy Morgenthaler, Cathy Alessi, Leah Friedman, Judith Owens, Vishesh Kapur, Brian Boehlecke, Terry Brown, Andrew Chesson, Jack Coleman, Teofilo Lee-Chiong, Jeffrey Pancer, Todd J. Swick,
Practice parameters for the use of actigraphy in the assessment of sleep and sleep disorders: an update for 2007. Sleep. ,vol. 30, pp. 519- 529 ,(2007) ,
10.1093/SLEEP/30.4.519