@article {MR730356,
    AUTHOR = {Z{\u{a}}linescu, Constantin},
     TITLE = {Estimating the distance from a point to a convex set},
   JOURNAL = {Numer. Funct. Anal. Optim.},
  FJOURNAL = {Numerical Functional Analysis and Optimization. An
              International Journal},
    VOLUME = {6},
      YEAR = {1983},
    NUMBER = {3},
     PAGES = {287--289},
      ISSN = {0163-0563},
     CODEN = {NFADOL},
   MRCLASS = {90C25 (41A65 90C48)},
  MRNUMBER = {MR730356 (85a:90182)},
       DOI = {10.1080/01630568308816167},
       URL = {http://dx.doi.org/10.1080/01630568308816167},
}