OLAWUWO, S.; VIAKHIREVA, V.; DEMAREV, A.; KASSAW, C.; NAZAROV, N.; DEMAREVA, V. UnnMindFlex: A prototype mobile application and case study on HRV-guided cognitive enhancement. Journal on Interactive Systems, Porto Alegre, RS, v. 16, n. 1, p. 954–961, 2025. DOI: 10.5753/jis.2025.5574. Disponível em: https://journals-sol.sbc.org.br/index.php/jis/article/view/5574. Acesso em: 31 jan. 2026.