XLII. On the scattering of light by a cloud of similar small particles of any shape and oriented at random
Lord Rayleigh · The London Edinburgh and Dublin Philosophical Magazine and Journal of Science · 1918
(1918). XLII. On the scattering of light by a cloud of similar small particles of any shape and oriented at random. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 35, No. 209, pp. 373-381.