On the Dielectric Loss (or Power Factor) and Dielectric Constant of Dielectrics
誘電體の誘電體損及誘電率に就いて

Hideo NUMAKURA
1931 The Journal of the Institute of Electrical Engineers of Japan  
doi:10.11526/ieejjournal1888.51.514_257 fatcat:r6hi22xtgvb6no7ngwnpb7ld3e