OFFSHORE CODE COMPARISON COLLABORATION CONTINUATION WITHIN IEA WIND TASK 30: PHASE II RESULTS REGARDING A FLOATING SEMISUBMERSIBLE WIND SYSTEM - Robertson, Amy; Jonkman, Jason; Vorpahl, Fabian; Popko, Wojciech; Qvist, Jacob; Froyd, Lars; Chen, Xiaohong; Azcona, Jose; Uzunoglu, Emre; Soares, Carlos Guedes; Luan, Chenyu; Huang Yutong; et al. (33RD INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING, 2014, VOL 9B, 2014)