@article{berry:1977:ft,
    author = {Berry, M. V.},
     title = {Focusing and twinkling: Critical exponents from catastrophes
              in non-{G}aussian random short waves},
   journal = {J. Phys. A},
    volume = {10},
      year = {1977},
    number = {12},
     pages = {2061–2081},
   mrclass = {78.41 (58C25)},
  mrnumber = {MR0489389 (58 \#8817)},
       doi = {10.1088/0305-4470/10/12/015},
     zblno = {0382.58008}}