1. The eustachian tube;Aschan;Acta Otolaryng.,1954
2. Surface irradiation of the eustachian tube;Beck;Arch. Otolaryng.,1969
3. Zehn Jahre Intratubare Bestrahlung;Beck;Z. Laryng. Rhinol. Otok,1961
4. Simple apparatus to measure eustachian tube function;Bortnick;Arch. Oto laryng.,1966
5. Tympanomaxillary shunt;Drettner;Arch. Otolaryng.,1969