Media type: E-Article Title: Hubble Space TelescopeObservations of the Optical Jets of PKS 0521−365, 3C 371, and PKS 2201+044 Contributor: Scarpa, Riccardo; Urry, C. Megan; Falomo, Renato; Treves, Aldo imprint: American Astronomical Society, 1999 Published in: The Astrophysical Journal Language: English DOI: 10.1086/308041 ISSN: 0004-637X; 1538-4357 Keywords: Space and Planetary Science ; Astronomy and Astrophysics Origination: Footnote: Access State: Open Access