@article {MR2063117,
    AUTHOR = {Simons, S. and Z{\u{a}}linescu, C.},
     TITLE = {A new proof for {R}ockafellar's characterization of maximal
              monotone operators},
   JOURNAL = {Proc. Amer. Math. Soc.},
  FJOURNAL = {Proceedings of the American Mathematical Society},
    VOLUME = {132},
      YEAR = {2004},
    NUMBER = {10},
     PAGES = {2969--2972 (electronic)},
      ISSN = {0002-9939},
     CODEN = {PAMYAR},
   MRCLASS = {47H05 (26B25)},
  MRNUMBER = {MR2063117 (2005f:47121)},
MRREVIEWER = {Elisabetta Allevi}, }