An Assessment of Rare Gas Filling Quality of Insulating Glazing Units of the Windows by Ultrasonic Method. Elektronika ir Elektrotechnika, [S. l.], v. 23, n. 5, 1999. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/16724.. Acesso em: 5 dec. 2025.