@inproceedings{bridges2001:123,
  author      = {Gimbel, Steven},
  title       = {Flatland, Curved Space: How M.C. Escher Illustrated the History of Geometry},
  pages       = {123--132},
  booktitle   = {Bridges: Mathematical Connections in Art, Music, and Science},
  year        = {2001},
  editor      = {Sarhangi, Reza and Jablan, Slavik},
  isbn        = {0-9665201-3-0},
  issn        = {1099-6702},
  publisher   = {Bridges Conference},
  address     = {Southwestern College, Winfield, Kansas},

  url         = {http://archive.bridgesmathart.org/2001/bridges2001-123.html}
}