@article{weinstein:1985:hel,
    author = {Weinstein, Michael I. and Keller, Joseph B.},
     title = {{H}ill's equation with a large potential},
   journal = {SIAM J. Appl. Math.},
  fjournal = {SIAM Journal on Applied Mathematics},
    volume = {45},
      year = {1985},
    number = {2},
     pages = {200–214},
      issn = {0036-1399},
     coden = {SMJMAP},
   mrclass = {34B30 (34E05)},
  mrnumber = {MR0781104 (86d:34045)},
mrreviewer = {H. Hochstadt},
       doi = {10.1137/0145011},
     zblno = {0578.34038}}