TKACHENKO, V. P.; CHELOMBITKO, V. F. Implementation of some of the principles of design patterns means operators language MAPLE. Theory and practice of design, [S. l.], n. 2, p. 127–132, 2012. DOI: 10.18372/2415-8151.2.6176. Disponível em: https://jrnl.nau.edu.ua/index.php/Design/article/view/6176. Acesso em: 6 dec. 2025.