@article{kolbig:1968:ad,
    author = {K{\"o}lbig, K. S.},
     title = {Algorithm 327: Dilogarithm [S22]},
   journal = {Comm. ACM},
    volume = {11},
    number = {4},
      year = {1968},
     pages = {270–271},
      note = {Includes Algol program, maximum accuracy 12D.},
      issn = {0001-0782},
       doi = {10.1145/362991.363043}}