Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
Paul R. Rosenbaum,Optimal Matching for Observational Studies,Journal of the American Statistical Association,0162-1459,JSTOR,1989-12,84,408,1024,https://cir.nii.ac.jp/crid/1364233268487131904,https://doi.org/10.2307/2290079