Erik Pontiskoski and Kazuhiro Asakawa, Overcoming Barriers to Open Innovation at Apple, Nintendo and Nokia. journal = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology. May 2009, vol. 29(5). 370 - 375 [viewed 19 March 2024]. Available from: https://publications.waset.org/pdf/11055.