Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Magono Choji and Takahashi Tsutomu,Experimental Studies on the Mechanism of Electrification of Graupel Pellets,Journal of the Meteorological Society of Japan. Ser. II,0026-1165,Meteorological Society of Japan,1963,41,4,197-210,https://cir.nii.ac.jp/crid/1390001206503647104,https://doi.org/10.2151/jmsj1923.41.4_197