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  • Subject

    • BL Lacertae objects: general (1)
    • BL Lacertae objects: individual: 3C66A (1)
    • Galaxies: active (1)
    • methods: observational (1)
    • Quasars: supermassive black hole (1)
    • Techniques: photometric (1)
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  • Date Issued

    • 2017 (1)