Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HAGIYA K. and AMAKI W.,Studies on the dropper of tulip bulbs. (II),Journal of the Japanese Society for Horticultural Science,00137626,THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE,1959,28,1,52-58,https://cir.nii.ac.jp/crid/1390001206301369344,https://doi.org/10.2503/jjshs.28.52