@incollection{barnett:1996:cbc,
    author = {Barnett, A. R.},
     title = {The Calculation of Spherical {B}essel Functions and {C}oulomb
              Functions},
 booktitle = {Computational Atomic Physics: Electron and Positron Collisions
              with Atoms and Ions},
    editor = {Bartschat, K. and Hinze, J.},
     pages = {181–202},
 publisher = {Springer},
   address = {Berlin},
      year = {1996},
      note = {Includes program disk. Double-precision Fortran code for
              positive energies. Maximum accuracy: 15D.},
      isbn = {3-540-60179-1},
     links = {\URL[FullText and Code]{http://www.fresco.org.uk/programs/barnett/index.htm}}}