Arzoumanian,Zaven;Baker,Paul T.;Brazier,Adam;Brook,Paul R.;Burke-Spolaor,Sarah;Becsy,Bence;Charisi,Maria;Chatterjee,Shamiκαι άλλοι.(2021-06-01).«The NANOGrav 11 yr Data Set: Limits on Supermassive Black Hole Binaries in Galaxies within 500 Mpc».The Astrophysical Journal914(2): 121.doi:10.3847/1538-4357/abfcd3.ISSN0004-637X.Bibcode:2021ApJ...914..121A.
Arzoumanian,Zaven;Baker,Paul T.;Brazier,Adam;Brook,Paul R.;Burke-Spolaor,Sarah;Becsy,Bence;Charisi,Maria;Chatterjee,Shamiκαι άλλοι.(2021-06-01).«The NANOGrav 11 yr Data Set: Limits on Supermassive Black Hole Binaries in Galaxies within 500 Mpc».The Astrophysical Journal914(2): 121.doi:10.3847/1538-4357/abfcd3.ISSN0004-637X.Bibcode:2021ApJ...914..121A.
Arzoumanian,Zaven;Baker,Paul T.;Brazier,Adam;Brook,Paul R.;Burke-Spolaor,Sarah;Becsy,Bence;Charisi,Maria;Chatterjee,Shamiκαι άλλοι.(2021-06-01).«The NANOGrav 11 yr Data Set: Limits on Supermassive Black Hole Binaries in Galaxies within 500 Mpc».The Astrophysical Journal914(2): 121.doi:10.3847/1538-4357/abfcd3.ISSN0004-637X.Bibcode:2021ApJ...914..121A.