The extended Lyman-α emission surrounding the z = 3.04 radio-quiet QSO1205-30: Primordial infalling gas illuminated by the quasar?M. Weidinger, P. Møller, J. P. U. Fynbo and B. ThomsenA&A, 436 3 (2005) 825-835DOI: https://doi.org/10.1051/0004-6361:20042304