@book {2019,
	title = {The emergence of complexity},
	year = {2019},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	address = {Cham},
	isbn = {978-3-030-31837-6},
	issn = {2366-1658},
	doi = {10.1007/978-3-030-31839-0},
	author = {Hager, Paul and Beckett, David}
}
