6.7 GHz methanol absorption toward the Seyfert 2 galaxy NGC 3079 C. M. V. Impellizzeri, C. Henkel, A. L. Roy and K. M. Menten A&A, 484 3 (2008) L43-L46 Published online: 15 May 2008 DOI: 10.1051/0004-6361:200809985