Start-Ups Aim to Help Tame Corporate Data, Pui-Wing Tam, Wall Street Journal, September 08, 2009 Woods, Dan (January 6, 2011).
2013년 4월 22일에 확인함.  Start-Ups Aim to Help Tame Corporate Data, Pui-Wing Tam, Wall Street Journal, September 08, 2009 Woods, Dan (2011년 1월 6일).