1. On the light from the sky, its polarization and colour;Strutt (Lord Rayleigh) XV;Lond. Edinb. Dublin Philos. Mag. J. Sci.,1871
2. On the scattering of light by small particles;Strutt (Lord Rayleigh) LVIII;Lond. Edinb. Dublin Philos. Mag. J. Sci.,1871
3. Principles of Nano-Optics;Novotny,2012
4. Electric dipole moment. Wikipedia,2020
5. Chapter 4. Multipoles, Electrostatic of Microscopic Media, Dielectrics. Class. Electrodyn.;Jackson,1998