Rosa, Daniel, 		Cordeiro, Filipe, 		Carvalho, Ruan, 		Souza, Everton, 		Chevtchenko, Sergio, 		Rodrigues, Luiz, 		Marinho, Marcelo, 		Vieira, Thales, E 		Macario, Valmir.
" Recognizing Handwritten Mathematical Expressions of Vertical Addition and Subtraction" <em>Anais da Conference on Graphics, Patterns and Images (SIBGRAPI)</em> [Online], (6 novembro 2023)