@article{barshalom:1988:epc,
    author = {Bar-Shalom, A. and Klapisch, M.},
     title = {{NJGRAF}: An efficient program for calculation of general
              recoupling coefficients by graphical analysis, compatible with
              {NJSYM}},
   journal = {Comput. Phys. Comm.},
  fjournal = {Computer Physics Communications},
    volume = {50},
      year = {1988},
    number = {3},
     pages = {375–393},
       doi = {10.1016/0010-4655(88)90192-0},
     links = {\URL[Code]{http://cpc.cs.qub.ac.uk/summaries/ABBY}}}