Vianna Moreira Junior, Cesar, et al. “Subjectivity of Appraisals of Inventive Step in Patent Examinations As an Element of Uncertainty in the Potential for Technological Innovation”. Brazilian Journal of Operations & Production Management, vol. 14, no. 4, Dec. 2017, pp. 519-28, doi:10.14488/BJOPM.2017.v14.n4.a8.