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) HECKMAN J.,"The common structure of statistical models of truncation, sample selection and limited dependent variables and a simple estimator for such models",Annals of Economic and Social Measurement,,,1976,5,,475-492,https://cir.nii.ac.jp/crid/1570009749184082816,