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quasars: individual (QSO E1821+643)
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| Issue Date | Title | Author(s) | Rank |
| 1-Feb-2016 | First long-term optical spectral monitoring of a binary black hole candidate E1821+643. I. variability of spectral lines and continuum | Shapovalova, A. I.; Popović, L.; Chavushyan, V. H.; Burenkov, A. N.; Ilić, Dragana ; Kollatschny, W.; Kovačević, Anđelka ; Valdés, J. R.; Patiño-Álvarez, V.; León-Tavares, J.; Torrealba, J.; Zhdanova, V. E. | |
