Karanfil, S. (2001) «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, 15(29-30), pp. 61–79. Disponible en: https://revistas.pucp.edu.pe/index.php/promathematica/article/view/8167 (Accedido: 12 diciembre 2025).