Silveira, F. da, Machado, F., Romano, L., Amaral, F. and Ruppenthal, J. (2018) “Strategy for the development of agricultural machinery: importance of patent analysis”, Brazilian Journal of Operations & Production Management, 15(4), pp. 535-544. doi: https://doi.org/10.14488/BJOPM.2018.v15.n4.a7.