Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Russell J. Balge and B. Esther Struckmeyer and G. E. Beck,"Occurrence, Severity and Nature of Oedema in Pelargonium hortorum Ait.12",Journal of the American Society for Horticultural Science,0003-1062,American Society for Horticultural Science,1969-03,94,2,181-183,https://cir.nii.ac.jp/crid/1360582947790877824,https://doi.org/10.21273/jashs.94.2.181