1. Norwegian Patents 1840–1980. Patents used as technology indicator in industry-sector analysis;Basberg,1981
2. Norwegian Patents 1840–1980;Basberg,1981
3. The Transfer of U.S. Technology Abroad;Bosworth;Research Policy,1980
4. Some Observations on Alternative approaches to the Analysis of International Competitiveness and the Role of the Technology Factor;Chesnais,1980