@inproceedings{f-ppcvn-87,
    author = "Franklin, Wm Randolph",
    title = "Polygon properties calculated from the vertex neighborhoods",
    booktitle = "Proc. 3rd Annu. ACM Sympos. Comput. Geom.",
    year = "1987",
    pages = "110--118",
    oldlabel = "geom-1214",
    fulltext = "https://wrfranklin.org/p/46-scg87-vertex.pdf",
    href = "\bibhref{46-scg87-vertex}",
    mykey = "topology",
    keywords = "rays, measure, polygons"
}