KİANİ, S. Automatic On-Line Depth Control of Seeding Units Using a Non-Contacting Ultrasonic Sensor. International Journal of Natural and Engineering Sciences, [S. l.], v. 6, n. 2, p. 39–42, 2019. Disponível em: https://ijnes.org/index.php/ijnes/article/view/202. Acesso em: 14 nov. 2024.