PYSHKIN, Evgeny; PONOMAREV, Mikhail. Mathematical Equation Structural Syntactical Similarity Patterns: A Tree Overlapping Algorithm and Its Evaluation. Informatica, [S. l.], v. 40, n. 4, 2016. Disponível em: https://www.informatica.si/index.php/informatica/article/view/1461. Acesso em: 14 jan. 2026.