KARANFIL, Salih. Obtaining the membership function by using the neural network in Istanbul stock exchange to find the relation between the low and closing prices. Pro Mathematica, [S. l.], v. 15, n. 29-30, p. 61–79, 2001. Disponível em: https://revistas.pucp.edu.pe/index.php/promathematica/article/view/8167. Acesso em: 12 dic. 2025.