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References

  • D'Elia, V., Padovani, P., Giommi, P., & Turriziani, S. (2015). Are many radio-selected BL Lacs radio quasars in disguise?. Monthly Notices of the Royal Astronomical Society, 449(4), 3517-3521.
  • Spinrad, H., & Smith, H. E. (1975). AO 0235+ 164 a red BL Lacertae object. The Astrophysical Journal, 201, 275-276.
  • Cohen, R. D., Smith, H. E., Junkkarinen, V. T., & Burbidge, E. M. (1987). The nature of the BL Lacertae object AO 0235+ 164. The Astrophysical Journal, 318, 577-584.