Knee Jonathan A. speaker Columbia University. Business Columbia University. Journalism Columbia University. Engineering and Applied Science originator moving image Presentations 2011 Columbia Engineering TEDx event, "Invention to Venture," Columbia University, April 8, 2011. Business Entrepreneurship http://www.youtube.com/watch?v=ZxQlbSAuGZ0 http://hdl.handle.net/10022/AC:P:12654 English NNC NNC 2012-02-21 13:21:36 -0500 2012-07-19 11:30:48 -0400 6659 eng