@article{buhring:1994:tdc,
    author = {B{\"u}hring, Wolfgang},
     title = {The double confluent {H}eun equation: Characteristic exponent
              and connection formulae},
   journal = {Methods Appl. Anal.},
  fjournal = {Methods and Applications of Analysis},
    volume = {1},
      year = {1994},
    number = {3},
     pages = {348–370},
      issn = {1073-2772},
   mrclass = {34A30 (34A20 34A25)},
  mrnumber = {MR1297275 (95g:34011)},
mrreviewer = {W. Balser},
     links = {\URL[FullText]{http://www.intlpress.com/MAA/p/1994/1_3/MAA-1-3-348-370.pdf}},
     zblno = {0849.34004}}