APA
Hosemann W., Göde U., Dunker J. E. & Eysholdt U. (19990311). Influence of endoscopic sinus surgery on voice quality. : European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery.
Chicago
Hosemann W, Göde U, Dunker J E and Eysholdt U. 19990311. Influence of endoscopic sinus surgery on voice quality. : European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery.
Harvard
Hosemann W., Göde U., Dunker J. E. and Eysholdt U. (19990311). Influence of endoscopic sinus surgery on voice quality. : European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery.
MLA
Hosemann W, Göde U, Dunker J E and Eysholdt U. Influence of endoscopic sinus surgery on voice quality. : European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery. 19990311.