@article{bartky:1938:ncg,
    author = {Bartky, W.},
     title = {Numerical calculation of a generalized complete elliptic
              integral},
   journal = {Rev. Mod. Phys.},
    volume = {10},
      year = {1938},
     pages = {264–269},
       doi = {10.1103/RevModPhys.10.264},
     zblno = {0020.15604}}