DOT tomography of the solar atmosphere - I. Telescope summary and program definition R. J. Rutten, R. H. Hammerschlag, F. C. M. Bettonvil, P. Sütterlin and A. G. de Wijn A&A, 413 3 (2004) 1183-1189 Published online: 07 January 2004 DOI: 10.1051/0004-6361:20031548