@article {MR929090,
    AUTHOR = {Kawski, Matthias},
     TITLE = {Control variations with an increasing number of switchings},
   JOURNAL = {Bull. Amer. Math. Soc. (N.S.)},
  FJOURNAL = {American Mathematical Society. Bulletin. New Series},
    VOLUME = {18},
      YEAR = {1988},
    NUMBER = {2},
     PAGES = {149--152},
      ISSN = {0273-0979},
     CODEN = {BAMOAD},
   MRCLASS = {49B36 (49E15 58F40 93B05)},
  MRNUMBER = {MR929090 (89b:49042)},
MRREVIEWER = {Henryk G{\'o}recki},
}