Dipping in CygnusX-2 in a multi-wavelength campaign due to absorption of extended ADC emission M. Bałucińska-Church, N. S. Schulz, J. Wilms, A. Gibiec, M. Hanke, R. E. Spencer, A. Rushton and M. J. Church A&A, 530 (2011) A102 Published online: 19 May 2011 DOI: 10.1051/0004-6361/201015931