CRUZ, Artur M. C. Brito da; MARTINS, Natalia. General quantum variational calculus. Statistics, Optimization & Information Computing, [S. l.], v. 6, n. 1, p. 22–41, 2018. DOI: 10.19139/soic.v6i1.467. Disponível em: https://iapress.org/index.php/soic/article/view/soic.20180304. Acesso em: 8 may. 2026.