@article{taylor:1982:ieb,
    author = {Taylor, James G.},
     title = {Improved error bounds for the {L}iouville-{G}reen (or
              {W}{K}{B}) approximation},
   journal = {J. Math. Anal. Appl.},
  fjournal = {Journal of Mathematical Analysis and Applications},
    volume = {85},
      year = {1982},
    number = {1},
     pages = {79–89},
      issn = {0022-247X},
     coden = {JMANAK},
   mrclass = {34B05 (34E20)},
  mrnumber = {MR0647559 (83e:34025)},
mrreviewer = {Klaus Deimling},
       doi = {10.1016/0022-247X(82)90026-9},
     zblno = {0499.34035}}