@article{mclachlan:1936:ssf,
    author = {McLachlan, N. M. and Meyers, A. L.},
     title = {The ster and stei functions},
   journal = {Phil. Mag. Series 7},
    volume = {21},
    number = {140},
      year = {1936},
     pages = {425–436},
       doi = {10.1080/14786443608561595},
     zblno = {0013.30703}}