Haig, DavidWestoby, Mark2009-05-201988Haig, David and Mark Westoby. 1988. On limits to seed production. American Naturalist 131, no. 5:757-759.0003-01471537-5323http://nrs.harvard.edu/urn-3:HUL.InstRepos:2961991en-USOn Limits to Seed Production10.1086/284817