Štěpán Hýsek, “Ultrasound measurement of exterior wood coating thickness”, Maderas-Cienc Tecnol, vol. 20, no. 4, pp. 671–680, Oct. 2018, Accessed: Oct. 30, 2026. [Online]. Available: https://revistas.ubiobio.cl/index.php/MCT/article/view/3232