408. Patent Application of David Chaum, «Random Sample Elections», June 19, 2014;

http://patents.justia.com/patent/20140172517.

409. https://blog.ethereum.org/2014/08/21/introduction-futarchy/.

410. Federico Ast (@federicoast) and Alejandro Sewrjugin (@asewrjugin), «The CrowdJury, a Crowdsourced Justice System for the Collaboration Era», https://medium.com/@federicoast/the-crowdjury-a-crowdsourced-court-system-for the-collaboration-era-66da002750d8#.e8yynqipo.