Economic Commission for Europe.
D003710:Demography; D019049:Developed Countries; D001330:Electronic Data Processing; D005060:Europe; D016247:Information Storage and Retrieval; D007256:Information Systems; D011153:Population; D011157:Population Dynamics
Data Storage And Retrieval; Demographic Factors; Developed Countries; Europe; Information; Information Processing; Information Retrieval Systems; Population; Population Dynamics