1.
Silveira F da, Machado FM, Romano LN, Amaral FG, Ruppenthal JE. Strategy for the development of agricultural machinery: importance of patent analysis. BJO&PM [Internet]. 2018 Sep. 12 [cited 2021 Dec. 2];15(4):535-44. Available from: https://bjopm.emnuvens.com.br/bjopm/article/view/513