@article{CM_1951__9__239_0,
     author = {Hammersley, J. M.},
     title = {The total length of the edges of a polyhedron},
     journal = {Compositio Mathematica},
     pages = {239--240},
     publisher = {Kraus Reprint},
     volume = {9},
     year = {1951},
     mrnumber = {46668},
     zbl = {0043.37504},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1951__9__239_0/}
}