1. Electrical insulation at cryogenic temperatures;Mathes;Electro-Technology,1963
2. Dielectric losses of various monocrystals of quartz at very low temperatures;Volger;Philips Res. Reps.,1955
3. Investigation of the dielectric losses of polyethylene;Mikhailov;Zh. Tekhn. Fiz.,1955
4. Dielectric Materials and Applications;von Hippel,1954
5. General characteristics of polyethylene;Shackleton;Trans AIEE,1945