RISC RISC Research Institute for Symbolic Computation  
  • @article{RISC2059,
    author = {F. Chyzak and I. Gutman and P. Paule},
    title = {{Predicting the number of hexagonal systems with 24 and 25 hexagons}},
    language = {english},
    journal = {Communications in Mathematical and Computer Chemistry},
    volume = {40},
    pages = {139--151},
    isbn_issn = {ISSN: 0340-6253},
    year = {1999},
    refereed = {yes},
    length = {13}
    }