Zhon Johansen Ken Auer Brian Button Alistair Cockburn James Grenning Kay Johansen Duff O'Melia Extreme Fishbowl. 289 2002 conf/xpu/2002 XP/Agile Universe http://link.springer.de/link/service/series/0558/bibs/2418/24180289.htm db/conf/xpu/xpu2002.html#JohansenABCGJO02