Rosa, D., 		Cordeiro, F., 		Carvalho, R., 		Souza, E., 		Chevtchenko, S., 		Rodrigues, L., 		Marinho, M., 		Vieira, T., & 		Macario, V.
(2023).
 Recognizing Handwritten Mathematical Expressions of Vertical Addition and Subtraction.
In <em>Anais da XXXVI Conference on Graphics, Patterns and Images</em>, (pp. 73-78). Porto Alegre: SBC.