Holzinger, Brigitte, Katharina Levec, Melissa-Marie Munzinger, and Gerhard Klösch. 2019. “Sleep Coaching: Non-Pharmacological Treatment of Non-Restorative Sleep in Austrian Railway Shift Workers”. Archives of Industrial Hygiene and Toxicology 70 (3). https://doi.org/10.2478/aiht-2019-70-3244.