GRUPIONI, Christina Maria de Freitas; SANTOS, Fábio Lúcio; FERNANDES, Haroldo Carlos; VALENTE, Domingos Sarvio Magalhães; PINTO, Francisco de Assis de Carvalho. Development and evaluation of operational performance of macaw fruits semi-mechanized harvester by means mechanical vibrations principle. Semina: Ciências Agrárias, [S. l.], v. 39, n. 2, p. 497–510, 2018. DOI: 10.5433/1679-0359.2018v39n2p497. Disponível em: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/29259. Acesso em: 25 jul. 2026.