Using Walsh Functions for Increase the Stealth Communication in a Digital Radio Channel. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, [S. l.], n. 85, p. 27–32, 2021. DOI: 10.20535/RADAP.2021.85.27-32. Disponível em: https://radap.kpi.ua/radiotechnique/article/view/1724. Acesso em: 2 apr. 2025.