@article{olver:1977:sod,
    author = {Olver, F. W. J.},
     title = {Second-order differential equations with fractional transition
              points},
   journal = {Trans. Amer. Math. Soc.},
    volume = {226},
      year = {1977},
     pages = {227–241},
   mrclass = {34E20},
  mrnumber = {MR0430445 (55 \#3450)},
mrreviewer = {Anthony Leung},
     links = {\URL[FullText]{http://links.jstor.org/sici?sici=0002-9947%28197702%29226%3C227%3ASDEWFT%3E2.0.CO%3B2-M}},
     zblno = {0355.34004}}