TY - CONF A1 - Puls, Joachim A1 - Markova, N. A1 - Najarro, F. A1 - Hanson, M. M. T1 - Clumping in O-star winds N2 - We review various diagnostics of clumping in O-star winds, with special emphasis on its radial stratification. Implications and problems are discussed, and promising NIR methods are presented. Y1 - 2008 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/1600 UR - https://nbn-resolving.org/urn:nbn:de:kobv:517-opus-17683 ER -