Mumford, David2012-11-111961Mumford, David. 1961. An elementary theorem in geometric invariant theory. Bulletin of the American Mathematical Society 67(5): 483-487.1088-94850273-0979http://nrs.harvard.edu/urn-3:HUL.InstRepos:9888892en-USJournal Article2012-11-1110.1090/S0002-9904-1961-10647-2