Astrophysical journal 

 - CHICAGO, ill. :  UNIVERSITY OF CHICAGO PRESS, 
 - Bimestral 
<br/><br/><label>ISSN: </label>0004-637X 
 = Astrophysical journal 
 = ASTROPHYS. J. 
<br/><br/><label>Subjects--Index Terms: </label>ASTRONOMIA