3Van den Braak S W, Van Oostendorp H, Prakken H, Vreeswijk G A W. A critical review of argument visu- alization tools: Do users become better reasoners[C]. Workshop notes of the ECAI-06 Workshop on Compu- tational Models of Natural Argument, Riva del Garda (Italy), August 28-29, 2006: 67-75. 被引量：1
4Kunz W, Rittel H W J. Issues as Elements of Informa- tion Systems[-D]. Berkeley: University of California, 1970. 被引量：1
