1. (1) N. Hozumi, T. Okamoto, and T. Imajo : “Space Charge Accumulation and Decay at The Interface Between Polyethylene and Ethylene - Vinylacetate Copolymer”, 8th International Symposium on High Voltage Engineering, Yokohama, Japan, pp. 115-118 (1993)
2. (2) T. Maeno, H. Kushibe, T. Takada, and C. M. Cook : “pulsed Electro-Acoustic Method for The Measurement of Volume Charge in the e-Beam Irradiated PMMA”, Proc. IEEE Conf. Electr. Insul. Diel. Phenom., pp. 389-397 (1985)
3. (3) N. Hozumi, T. Kawashima, and T. Imajo : “Space Charge Distribution Measurement in A Long Size XLPE Cable Using the Pulsed Electroacoustic Method”, Proc. IEEE Int. Symp. Electr. Insul., pp. 294-297 (1992)
4. (4) S. Zahra, T. Kawashima, Y. Murakami, and N. Hozumi : “Small-size Space Charge Measurement Device for Power Cables by Using Electrically Insulated Acoustic Coupler”, 2020 IEEE 3rd International Conference on Dielectrics (ICD), pp. 359-362 (2020)
5. (5) Y. Li and T. Takada : “Space Charge Distribution in Multi-Ply LDPE”, Proc. IEEE Conf. Electr. Insul. Diel. Phenom., pp. 397-402 (1992)