Sanger, Larry. "Introducing the Encyclosphere". Larry Sanger Blog. Larry Sanger. Archived from the original on October 20, 2019. Retrieved October 21, 2019.
Sanger, Larry. "Introducing the Encyclosphere". Larry Sanger Blog. Larry Sanger. Archived from the original on October 20, 2019. Retrieved October 21, 2019.