Klose, S. and Henden, A. A. and Greiner, J. and Hartmann, D. H. and Cardiel López, Nicolás and Castro Tirado, A. J. and Cerón, J. M. C. and Gallego Maestro, Jesús and Gorosabel, J. and Stecklum, B. and Tanvir, N. and Thiele, U. and Vrba, F. J. and Zeh, A. (2003) The very faint K-band afterglow of GRB 020819 and the dust extinction hypothesis of the dark bursts. Astrophysical journal, 592 (2). pp. 1025-1034. ISSN 0004-637X