Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Fumio Hiai,Radon-Nikodym theorems for set-valued measures,Journal of Multivariate Analysis,0047-259X,Elsevier BV,1978-03,8,1,96-118,https://cir.nii.ac.jp/crid/1360574095378062080,https://doi.org/10.1016/0047-259x(78)90022-2