@inproceedings{bridges2007:225,
  author      = {McKenna, Douglas},
  title       = {The 7 Curve, Carpets, Quilts, and Other Asymmetric, Square-Filling, Threaded Tile Designs},
  pages       = {225--232},
  booktitle   = {Bridges Donostia: Mathematics, Music, Art, Architecture, Culture},
  year        = {2007},
  editor      = {Sarhangi, Reza and Barrallo, Javier},
  isbn        = {0-9665201-8-1},
  issn        = {1099-6702},
  publisher   = {Tarquin Publications},
  address     = {London},

  url         = {http://archive.bridgesmathart.org/2007/bridges2007-225.html}
}