MÜLLER, Joachim; KLEINKNECHT, Christoph; KÖLLER, Karlheinz. Optosensor. agricultural engineering.eu, [S. l.], v. 52, n. 2, p. 76–77, 1997. DOI: 10.15150/lt.1997.2557. Disponível em: http://195.37.233.11/landtechnik/article/view/1997-52-2-076-077. Acesso em: 3 mai. 2024.