@book{compref13,
   author = {Anderson,PW and Arrow,KJ and Pines,D (Eds.)},
   year = {1988},
   title = {The Economy as an Evolving Complex System},
   publisher = {Santa Fe Institute},
   address = {Sante Fe, New Mexico}
}

@article{compref646,
   author = {Anderson,PW},
   year = {1972},
   title = {More is Different},
   journal = {Science},
   volume = {177},
   pages = {393-396}
}