@incollection{duren:1991:lre,
    author = {Duren, Peter L.},
    editor = {Ewing, J. H. and Gehring, F. W.},
     title = {The {L}egendre Relation for Elliptic Integrals},
 booktitle = {Paul Halmos: Celebrating 50 Years of Mathematics},
     pages = {305–315},
 publisher = {Springer-Verlag},
   address = {New York},
      year = {1991},
   mrclass = {33E05 (01A55 33C05)},
  mrnumber = {MR1113282 (93a:33033)},
mrreviewer = {J. M. H. Peters},
      isbn = {0-387-97509-8},
     zblno = {0787.33010}}