“Electrical Impedance Mathematical Modeling of Piezoceramic Disc Oscillating in Wide Frequency Range (Part 3. High Frequencies)” (2025) Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, (99), pp. 15–23. doi:10.20535/RADAP.2025.99.15-23.