Aoyama, Yuko and Hiro Izushi, 2008. “User-innovation in the video game industry.” DIME Working Paper. Available at http://www.dime-eu.org/files/active/0/AoyamaIzushiPAPER.pdf
Aoyama, Yuko and Hiro Izushi, 2008. “User-innovation in the video game industry.” DIME Working Paper. Available at http://www.dime-eu.org/files/active/0/AoyamaIzushiPAPER.pdf