A grey scale test pattern generator for testing APT recorders. MAUSAM, [S. l.], v. 37, n. 3, p. 353–354, 1986. DOI: 10.54302/mausam.v37i3.2455. Disponível em: https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/2455. Acesso em: 29 dec. 2025.