@article {MR1656849,
    AUTHOR = {Morris, G. and Ward, T.},
     TITLE = {Entropy bounds for endomorphisms commuting with {$K$} actions},
   JOURNAL = {Israel J. Math.},
  FJOURNAL = {Israel Journal of Mathematics},
    VOLUME = {106},
      YEAR = {1998},
     PAGES = {1--11},
      ISSN = {0021-2172},
     CODEN = {ISJMAP},
   MRCLASS = {28D20 (54C70)},
  MRNUMBER = {MR1656849 (99m:28042)},
MRREVIEWER = {Miaohua Jiang},
}