Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
Frederick J. Almgren and Elliott H. Lieb,Symmetric decreasing rearrangement is sometimes continuous,Journal of the American Mathematical Society,0894-0347,American Mathematical Society (AMS),1989,2,4,683-773,https://cir.nii.ac.jp/crid/1361137046010107136,https://doi.org/10.1090/s0894-0347-1989-1002633-4