Modelling dications in the diurnal ionosphere of Venus G. Gronoff, J. Lilensten, C. Simon, O. Witasse, R. Thissen, O. Dutuit and C. Alcaraz A&A, 465 2 (2007) 641-645 Published online: 22 January 2007 DOI: 10.1051/0004-6361:20065991