Book(print)#11989The cost-benefit analysis and the spread of data-processing applications in social security: fifth International Conference on Data-Processing in the Field of Social Security, Rome, 13-15 September 1988International Conference on Data Processing in the Field of Social Security 5 1988 Rom; International Social Security AssociationInternational Conference on Data Processing in the Field of Social Security 5 1988 Rom; International Social Security AssociationOrder using Availability