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JRP Angel and HS Stockman.“Optical and Infrared Polarization of Active Bibliography J.R.P. Angel and H.S. Stockman. \Optical and infrared polarization of active extragalactic objects.". Ann. Rev. Astron. Astrophys., 8:321{361, 1980. S. Ant¶on and I. Browne. \Host galaxies of Flat Radio Spectrum Sources.". In L.O. Takalo and A. SillanpÄaÄa, editors, BL Lac Phenomenon, volume 159 of A.S.P. Conference Series, pages 377{380, 1999. R.R.J. Antonucci. \Polarization of active galactic nuclei and quasars". In M. Kafatos, editor, Supermassive Black Holes, Proceedings of the 3rd George Mason Astrophysics Workshop, pages 26{38. Cambridge Univer- sity Press, Cambridge, 1988. R.R.J. Antonucci and J.S. Ulvestad. \Extended radio emission and the nature of blazars.". Astrophys. J., 294:158{182, 1985. W. Baade. \Polarization in the jet of Messier 87.". Astrophys. J., 123: 550{551, 1956. J. N. Bahcall, S. Kirhakos, D. H. Saxe, and D. P. 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