Dirk A Pevernagie

On the rise and fall of the apnea−hypopnea index: A historical review and critical appraisal

Thomas Penzel, Ludger Grote, Raphael Heinzer, 2020, Journal of sleep research.

Assessment of respiratory effort during sleep: Esophageal pressure versus noninvasive monitoring techniques.

Sebastiaan Overeem, S. Overeem, D. Pevernagie, 2015, Sleep medicine reviews.