An improved algorithm and a Fortran 90 module for computing the conical function fm-1/2+iτ(x).

Amparo Gil Javier Segura Nico M. Temme An improved algorithm and a Fortran 90 module for computing the conical function fm-1/2+iτ(x). 794-799 2012 183 Computer Physics Communications 3 http://dx.doi.org/10.1016/j.cpc.2011.11.025 db/journals/cphysics/cphysics183.html#GilST12