Agent-Mediated Electronic Commerce. Designing Trading Strategies and Mechanisms for Electronic Markets AMEC 2011, Taipei, Taiwan, May 2, 2011, and TADA 2011, Barcelona, Spain, July 17, 2011, Revised Selected Papers - David, Esther; Robu, Valentin; Shehory, Onn; Stein, Sebastian; Symeonidis, Andreas (Springer Berlin Heidelberg : Imprint: Springer, 2013)