@article{wright:1980:ssc,
    author = {Wright, F. J.},
     title = {The {S}tokes set of the cusp diffraction catastrophe},
   journal = {J. Phys. A},
  fjournal = {Journal of Physics. A. Mathematical and General},
    volume = {13},
      year = {1980},
    number = {9},
     pages = {2913–2928},
      issn = {0305-4470},
     coden = {JPHAC5},
   mrclass = {58C28 (35B32 58G15 78A45)},
  mrnumber = {MR0586489 (82b:58020)},
mrreviewer = {I. Stewart},
       doi = {10.1088/0305-4470/13/9/018},
     zblno = {0514.58009}}