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Information × Registration Number 0303U001233, 0101U002227 , R & D reports Title The activity in the galactic nuclei. Spectral monitoring and UBVRI photometry of the selected objects. The polarimetry of the BL Lac objects. popup.stage_title Спектральний i фотометричний монiторiнг вибраних галактик з активними ядрами типу NGC 4151 i декiлькох об?єктiв типу BL Lac. Head Pronik V.I., Registration Date 12-02-2003 Organization Crimean astrophysical observatory popup.description2 The observations of variations of spectral lines structures in the active galaxies Product Description popup.authors popup.nrat_date 2020-04-02 Close