Kessler, R. C., Berglund, P. A., Coulouvrat, C., Hajak, G., Roth, T., Shahly, V., . . . Walsh, J. K. (2011). Insomnia and the Performance of US Workers: Results from the America Insomnia Survey. Associated Professional Sleep Societies, LLC.

Kessler, Ronald C., Patricia A. Berglund, Catherine Coulouvrat, Goeran Hajak, Thomas Roth, Victoria Shahly, Alicia C. Shillington, Judith J. Stephenson, und James K. Walsh. Insomnia and the Performance of US Workers: Results From the America Insomnia Survey. Associated Professional Sleep Societies, LLC, 2011.

Kessler, Ronald C., et al. Insomnia and the Performance of US Workers: Results From the America Insomnia Survey. Associated Professional Sleep Societies, LLC, 2011.