@inproceedings{bridges2000:61,
  author      = {Greenfield, Gary R.},
  title       = {Mathematical Building Blocks for Evolving Expressions},
  pages       = {61--70},
  booktitle   = {Bridges: Mathematical Connections in Art, Music, and Science},
  year        = {2000},
  editor      = {Sarhangi, Reza},
  isbn        = {0-9665201-2-2},
  issn        = {1099-6702},
  publisher   = {Bridges Conference},
  address     = {Southwestern College, Winfield, Kansas},

  url         = {http://archive.bridgesmathart.org/2000/bridges2000-61.html}
}