[Umbralometry in the Spanish Navy].  [electronic resource] 

 -  Bulletin de la Societe belge d'ophtalmologie  1953 
 - 149-53 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0081-0746 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adaptation, Ocular<br/>Humans