Culqui-Culqui, G., S. Sanchez-Gordon, and M. Hernández-Álvarez. “An Algorithm for Classifying Handwritten Signatures Using Convolutional Networks”. IEEE Latin America Transactions, vol. 20, no. 3, Oct. 2021, pp. 465-73, https://latamt.ieeer9.org/index.php/transactions/article/view/5849.