@article{dragoun:1971:pci,
    author = {Dragoun, O. and Heuser, G.},
     title = {A program to calculate internal conversion coefficients
              for all atomic shells without screening},
   journal = {Comput. Phys. Comm.},
  fjournal = {Computer Physics Communications. An International Journal and
              Program Library for Computational Physics and Physical
              Chemistry},
    volume = {2},
      year = {1971},
    number = {7},
     pages = {427–432},
      note = {Single-precision Fortran},
       doi = {10.1016/0010-4655(71)90035-X},
     links = {\URL[Code]{http://cpc.cs.qub.ac.uk/summaries/ABGF}}}