KIM, Y.; PARK, S.; LEE, J.; KANG, J. A Study on the Development of a Core Patent Classification Model Using Improved Patent Performance Indicators. International Journal of Intelligent Systems and Applications in Engineering, [S. l.], v. 10, n. 1, p. 1–9, 2022. DOI: 10.18201/ijisae.2022.261. Disponível em: https://ijisae.org/index.php/IJISAE/article/view/1636. Acesso em: 3 jul. 2024.