@misc{oai:yamagata.repo.nii.ac.jp:00001998,
 author = {Sato,  Satoru},
 month = {Jan},
 note = {学位論文(Thesis), 学位授与大学: University of East Anglia ; 学位の種類: Thesis(Ph.D.) ; 学位取得年月日: 2001年},
 title = {Ecology of ladybirds factors influencing their survival},
 year = {2001}
}