Fourth Catalog of Interferometric Measurements of Binary Stars: References  

Note:  Uniform reference codes and now a common reference file have been adopted 
for all USNO double star catalogs, including the latest orbit, rectilinear motions,
and photometric magnitude difference catalogs, as well as the Washington Double 
Star Catalogue and the Fourth Interferometric Catalog.  Reference codes are based 
on WDS Discoverer Designations and the date of publication.

DD   REFCODE        AUTHOR(S)                                        REFERENCE                                                    
             METHOD                                                                                                               
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