The Seyfert 1 Galaxy Mrk 335 at a very low flux state: mapping the soft X-ray photoionised gasA. L. Longinotti, A. Nucita, M. Santos-Lleo and M. GuainazziA&A, 484 2 (2008) 311-315DOI: https://doi.org/10.1051/0004-6361:200809374