Roger and Neri: thanks for the reference to Edelberg's articles.   
Actually, I would  like to know the dates of birth and death of three   
economists listed in my previous message, namely  
  
Victor Edelberg  
  
Martin  
  
Heuser  
  
It appears that Rosteutscher was a linguist.  
  
Thanks,  
  
Cristina Marcuzzo