Helgard Wienert (Wienert, Helgard)

• 
  East-West Technology Transfer: The Trade and Economic Aspects
  by John Slater, Helgard Wienert
  Softcover, Renouf Pub Co Ltd, ISBN 9264128174 (92-64-12817-4)
• 
  Industry in the Czech and Slovak Republics
  by Organisation for Economic Co-Operation and Development, Centre for Co-Operation With the Economies in Transition, Josef C. Brada, Helgard Wienert, Jean-Daniel Clavel
  Softcover, Renouf Pub Co Ltd, ISBN 9264141871 (92-64-14187-1)
• 
  Technology Transfer Between East and West
  by Eugene Zaleski, Helgard Wienert
  Softcover, Renouf Pub Co Ltd, ISBN 9264121250 (92-64-12125-0)