@article{luscombe:1998:sra,
    author = {Luscombe, J. H. and Luban, M.},
     title = {Simplified recursive algorithm for {W}igner $3j$ and $6j$ symbols},
   journal = {Phys. Rev. E},
      year = {1998},
    volume = {57},
     pages = {7274–7277},
    number = {6},
       doi = {10.1103/PhysRevE.57.7274}}