1. Secondary acquired lacrimal duct obstruction and cervical lymphadenopathy;J Heichel;HNO,2018
2. Diagnostics and treatment of lacrimal duct diseases: A structured patient-centred care concept;J Heichel;HNO,2018
3. Pediatric acute dacryocystitis due to frontoethmoidal mucocele;J Heichel;HNO,2019
4. Disorders of the Lacrimal Apparatus, Part 1: Anatomy, Physiology, Diagnostics;J Heichel;Laryngorhinootologie,2020
5. Disorders of the Lacrimal Apparatus, Part 2: Basics of Therapy;J Heichel;Laryngorhinootologie,2020