1. Alternative Economic Indicators;Anderson,1991
2. The Economics of Innovation. New Technologies and Structural Change;Antonelli,2003
3. Patents as indicator of technological innovation;Archibugi;Science and Public Policy,1992
4. A new indicator of technological capabilities for developed and developing countries (ArCo);Archibugi;World Development,2004
5. The technological specialization of advanced countries;Archibugi,1992