@book {ICCS2018, title = {Unifying Themes in Complex Systems IX: Proceedings of the Ninth International Conference on Complex Systems}, series = {Springer Proceedings in Complexity}, year = {2018}, publisher = {Springer}, organization = {Springer}, address = {Cambridge, MA, USA}, url = {https://link.springer.com/book/10.1007/978-3-319-96661-8}, editor = {Alfredo J. Morales and Carlos Gershenson and Dan Braha and Ali A. Minai and Yaneer Bar-Yam} }