O Telescopio Refractor e a Astrometria so Servico das Estralas Duplas 

 - Torino  L'Observatorio  Astronomico di Torino  1977 
 - 210 p.,giagr. 
 - Quoloque Astronomique Europeen  1974 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy-Conference
<br/><br/><label>Subjects--Index Terms: </label>Double Stars-Astrometry-Conference 
<br/><br/><label>Dewey Class. No.: </label>A9C73f1220