@article{arnold:1974:nff,
    author = {Arnol'd, V. I.},
     title = {Normal forms of functions in the neighborhood of degenerate
              critical points},
      note = {Collection of articles dedicated to the memory of Ivan
              Georgievi\v c Petrovski\u\i\ (1901–1973), I. In Russian.
              English translation: Russian Math. Surveys, {\bf{29}}(1974),
              no. 2, pp. 10–50.},
  language = {Russian},
   journal = {Uspehi Mat. Nauk},
    volume = {29},
      year = {1974},
    number = {2(176)},
     pages = {11–49},
   mrclass = {58C25 (14B05 57D70)},
  mrnumber = {MR0516034 (58 \#24324)},
mrreviewer = {G. R. Belickii},
       doi = {10.1070/RM1974v029n02ABEH003846},
     zblno = {0304.57018}}