Ullmann, John E

• The arms race and the decline of U.S. technology, John E Ullmann, June 1983, p. 565-74
  
  

Underwood, Daniel A

• Estimation, verification, and prognostication: for what?, Daniel A Underwood, June 1989, p. 587-95
  
  

Unger, Brigitte

• Governance, economic restructuring, and international competitiveness, Franz Traxler and Brigitte Unger, March 1994, p. 1-23