@inproceedings{bridges1999:55,
  author      = {Friedman, Nathaniel A.},
  title       = {Geometric Sculpture for K-12: Geos, Hyperseeing, and Hypersculptures},
  pages       = {55--62},
  booktitle   = {Bridges: Mathematical Connections in Art, Music, and Science},
  year        = {1999},
  editor      = {Sarhangi, Reza},
  isbn        = {0-9665201-1-4},
  issn        = {1099-6702},
  publisher   = {Bridges Conference},
  address     = {Southwestern College, Winfield, Kansas},

  url         = {http://archive.bridgesmathart.org/1999/bridges1999-55.html}
}