Glessiane de O. Almeida and  Sérgio Murilo C. Messias and  Iracema M. de Aragão Gomes,  System of Innovation: Comparing Savings of Brazil and South Africa.   journal   = {International Journal of Mechanical and Industrial Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2015, vol. 99(3). 795 - 798
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