title: Optimal city size and population density for the 21st century.
authors.lastname: Speare A
authors.forename: M J
authors.initials: MJ
authors.lastname: White
mesh_terms: D003710:Demography; D004467:Economics; D004641:Emigration and Immigration; D004777:Environment; D005069:Evaluation Studies as Topic; D005843:Geography; D011153:Population; D011157:Population Dynamics; D011158:Population Growth; D011788:Quality of Life; D012940:Social Problems; D012946:Social Welfare; D013672:Technology; D014505:Urban Population; D014507:Urbanization