Schutz, Bernard F. (1984). "Gravitational waves on the back of an envelope". American Journal of Physics. Quyển 52 số 5. tr. 412. Bibcode:1984AmJPh..52..412S. doi:10.1119/1.13627.
Hulse, R. A.; Taylor, J. H. (1975). "Discovery of a pulsar in a binary system". The Astrophysical Journal. Quyển 195. tr. L51. Bibcode:1975ApJ...195L..51H. doi:10.1086/181708.
Schutz, Bernard F. (1984). "Gravitational waves on the back of an envelope". American Journal of Physics. Quyển 52 số 5. tr. 412. Bibcode:1984AmJPh..52..412S. doi:10.1119/1.13627.
Hulse, R. A.; Taylor, J. H. (1975). "Discovery of a pulsar in a binary system". The Astrophysical Journal. Quyển 195. tr. L51. Bibcode:1975ApJ...195L..51H. doi:10.1086/181708.