@inbook{336681,
 author = {James P. Crutchfield},
 title = {Is anything ever new?: considering emergence},
 book = {Complexity: metaphors, models, and reality},
 year = {1999},
 isbn = {0-7382-0232-0},
 pages = {515--537},
 publisher = {Perseus Books},
 address = {Cambridge, MA, USA},
 url={ftp://ftp.santafe.edu/pub/CompMech/papers/EverNew.pdf}
 }