Media type: E-Article Title: Matching when covariables are normally distributed Contributor: CARPENTER, R. G. Published: Oxford University Press (OUP), 1977 Published in: Biometrika, 64 (1977) 2, Seite 299-307 Language: English DOI: 10.1093/biomet/64.2.299 ISSN: 1464-3510; 0006-3444 Origination: Footnote: