@book{magnus:1966:he,
    author = {Magnus, Wilhelm and Winkler, Stanley},
     title = {{H}ill's Equation},
    series = {Interscience Tracts in Pure and Applied Mathematics, No. 20},
 publisher = {Interscience Publishers John Wiley \& Sons},
   address = {New York-London-Sydney},
      year = {1966},
      note = {Reprinted by Dover Publications, Inc., New York, 1979.},
     pages = {viii+127},
   mrclass = {34.30},
  mrnumber = {MR0197830 (33 \#5991)},
mrreviewer = {H. Hochstadt},
     zblno = {0158.09604}}