possible. The editors did their best to find an acceptable 
solution. The conference language was English as it was not 
possible to provide simultaneous translation for budgetary 
reasons. Manuscripts have been accepted in one of the official 
languages of both organizations, English, French and German. 
English abstracts of the papers (if available) are additionally 
reproduced in cases where the manuscripts are written in French 
or German and the abstract is not included in the text. Because 
of the limited availability of funds it was necessary to reduce 
the format of the publication and the number of photographs, 
mainly concerning coloured illustrations. The reader may excuse 
some lack of uniformity and sometimes also a loss of information 
which could not be avoided because of the above-mentioned 
restrictions. Thanks to all colleagues who have contributed 
manuscripts. 
We acknowledge with gratitude the support and encouragement 
received from the various sponsors for the organization of the 
symposium and the publication of these proceedings. The arrange- 
ment of the numerous sessions, excursions, and social events 
as well as the preparation of this publication would not have 
been possible without the active assistance and support by the 
University of Freiburg, the Katholische Akademie in Freiburg, 
municipal authorities of Freiburg, several firms, agencies and 
institutes and last not least the members of the symposium 
committee. We also would like to thank all of them. 
G.Hildebrandt 
H.-J.Boehnel 
Editors 
  
  
  
  
  
  
  
  
  
   
  
  
   
   
  
   
  
  
  
   
  
  
  
  
  
  
  
   
   
   
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
   
   
  
  
  
  
   
Title 
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