TONG, Z.; CHEN, X.; NI, B.; WANG, X. Sketch Generation with Drawing Process Guided by Vector Flow and Grayscale. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 35, n. 1, p. 609-616, 2021. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/16140. Acesso em: 21 oct. 2021.