Dunaĭvitser, B I <br/><br/>
[History of hearing aids in our country].  [electronic resource] 

 -  Vestnik otorinolaringologii   
 - 78-82 p.  digital 
<br/><br/> Publication Type: Historical Article; Journal Article 
<br/><br/><label>ISSN: </label>0042-4668 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hearing Aids--history<br/>History, 20th Century<br/>Humans<br/>USSR