F. Mascarenhas, C. A. Vieira, T. M. A. Marques, P. J. A. Borges, B. de O. e Silva, and W. B. dos Santos, “Flexible accumulation, techniques of innovation and great industry of the fitness: the case Curves Brazil”, RPP, vol. 10, no. 2, pp. 69–91, Sep. 2007.