Mumford, DavidNess, Linda2010-02-021984Mumford, David B. 1984. App. to "A stratification of the null cone via the moment map," by Linda Ness. American Journal of Mathematics 106(6): 1281-1329.0002-9327http://nrs.harvard.edu/urn-3:HUL.InstRepos:3615198en-USJournal Article2010-02-0210.2307/2374395