Title: X-ray, UV and optical time delays in the bright Seyfert galaxy Ark 120 with co-ordinated Swift and ground-based observations
Authors: Lobban, A. P., Zola, S., Pajdosz-Smierciak, U., et al.
Journal: Monthly Notices of the Royal Astronomical Society
Publication type: article
DOI: 10.1093/mnras/staa630