1. Science & engineering indicators, 1991;National Science Board,1991
2. Rocky road for Federal Research Inc;Anderson;Science,1993
3. Scripps backs down on controversial Sandoz deal;Anderson;Science,1993
4. Patents on scientific discoveries are unfair and potentially dangerous;Milstein;Scientist,1993
5. Legal protection of biotechnological inventions in European Community;Thurston;Genet Engin News,1993