Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Harry J. Swartz and Gene J. Galletta and Richard H. Zimmerman,Field Performance and Phenotypic Stability of Tissue Culture-propagated Thornless Blackberries1,Journal of the American Society for Horticultural Science,0003-1062,American Society for Horticultural Science,1983-03,108,2,285-290,https://cir.nii.ac.jp/crid/1360298345422912256,https://doi.org/10.21273/jashs.108.2.285