Ades, C., A. Figlioli, R. Sbragia, G. Porto, G. A. Plonski, and K. Celadon. “Implementing Open Innovation: The Case of Natura, IBM and Siemens”. Journal of Technology Management &Amp; Innovation, vol. 8, May 2013, pp. 12-25, doi:10.4067/S0718-27242013000300057.