@article{berrington:1974:gpc,
    author = {Berrington, K. A. and Burke, P. G. and Chang., J. J. and
              Chivers, A. T. and Robb, W. D. and Taylor, K. T.},
     title = {A general program to calculate atomic continuum processes
              using the {R}-matrix method},
   journal = {Comput. Phys. Comm.},
  fjournal = {Computer Physics Communications},
    volume = {8},
      year = {1974},
    number = {3},
     pages = {149–198},
       doi = {10.1016/0010-4655(74)90096-4},
     links = {\URL[Code]{http://cpc.cs.qub.ac.uk/summaries/AAHD}}}