Planning New Tariffs at tele.ring: The Application and Impact of an Integrated Segmentation, Targeting, and Positioning Tool.Published in:Marketing Science, 2008, v. 27, n. 4, p. 600, doi. 10.1287/mksc.1070.0307By:Natter, Martin;Mild, Andreas;Wagner, Udo;Taudes, AlfredPublication type:Article