Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NEWMAN D.,Element Stewardship Abstract for Cynodon dactylon. The Nature Conservancy,http://tncweeds.ucdavis.edu/esadocs/documnts/cynodac.pdf,,,1992,,,,https://cir.nii.ac.jp/crid/1570291225309243136,