@article{siewert:1973:eas,
    author = {Siewert, C. E. and Burniston, E. E.},
     title = {Exact analytical solutions of {$ze^z=a$}},
   journal = {J. Math. Anal. Appl.},
    volume = {43},
      year = {1973},
    number = {3},
     pages = {626–632},
   mrclass = {65H05 (39A15)},
  mrnumber = {MR0331762 (48 \#10094)},
mrreviewer = {Pl. Kannappan},
       doi = {10.1016/0022-247X(73)90281-3},
     zblno = {0271.33003}}