Burbidge, G (1956). "On synchrotron radiation from Messier 87". Astrophysical Journal. 124: 416. Bibcode:1956ApJ...124..416B. doi:10.1086/146237.
Scheuer, PAG (1974). "Models of extragalactic radio sources with a continuous energy supply from a central object". Monthly Notices of the Royal Astronomical Society. 166: 513–528. Bibcode:1974MNRAS.166..513S. doi:10.1093/mnras/166.3.513.
Blandford RD; Rees MJ (1974). "A 'twin-exhaust' model for double radio sources". Monthly Notices of the Royal Astronomical Society. 169: 395–415. Bibcode:1974MNRAS.169..395B. doi:10.1093/mnras/169.3.395.
Fanaroff, Bernard L.; Riley Julia M. (May 1974). "The morphology of extragalactic radio sources of high and low luminosity". Monthly Notices of the Royal Astronomical Society. 167: 31P–36P. Bibcode:1974MNRAS.167P..31F. doi:10.1093/mnras/167.1.31p.
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Burbidge, G (1956). "On synchrotron radiation from Messier 87". Astrophysical Journal. 124: 416. Bibcode:1956ApJ...124..416B. doi:10.1086/146237.
Scheuer, PAG (1974). "Models of extragalactic radio sources with a continuous energy supply from a central object". Monthly Notices of the Royal Astronomical Society. 166: 513–528. Bibcode:1974MNRAS.166..513S. doi:10.1093/mnras/166.3.513.
Blandford RD; Rees MJ (1974). "A 'twin-exhaust' model for double radio sources". Monthly Notices of the Royal Astronomical Society. 169: 395–415. Bibcode:1974MNRAS.169..395B. doi:10.1093/mnras/169.3.395.
Fanaroff, Bernard L.; Riley Julia M. (May 1974). "The morphology of extragalactic radio sources of high and low luminosity". Monthly Notices of the Royal Astronomical Society. 167: 31P–36P. Bibcode:1974MNRAS.167P..31F. doi:10.1093/mnras/167.1.31p.