Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SHIBUKAWA J. and SOMA M. and IZUMIYA A. and UNO T.,Studies on leaf analyses of apple trees. (II),Journal of the Japanese Society for Horticultural Science,00137626,THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE,1958,27,2,81-88_1,https://cir.nii.ac.jp/crid/1390001206301351552,https://doi.org/10.2503/jjshs.27.81