著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) POYSA H.,Group foraging in patchy environments : the importance of coarse-level local enhancement,Ornis Scand.,,,1992,23,,159-166,https://cir.nii.ac.jp/crid/1573105975825051008,