Notice of Absorption-Type Merger of Consolidated Subsidiaries and Partial Amendments to the Trade Name and the Articles of Incorporation [online]. Kadokawa Corporation, 2013-03-28 [cit. 2020-08-22]. PDF. Dostupné v archivu pořízeném dne 2014-04-13. (anglicky)
Publisher Kadokawa, Internet firm Dwango complete merger [online]. The Japan Times, 2014-10-01 [cit. 2020-08-22]. Dostupné v archivu pořízeném dne 2019-05-05. (anglicky)