%%%%%%%%%%%%%%%%%%%%%%%%% AMSTeX file %%%%%%%%
%%%%%                                
%%%%%  to appear in the Proceedings of 
%%%%%  the Workshop ``Emerging Applications of Number Theory", held in 
%%%%%  July 1996 at  the Institute for Mathematics and 
%%%%%  Its Applications,  University of Minnesota. 
%%%%% 
%%%%%  Lev Kapitanski and Igor Rodnianski %%%%%%%%%%%%%%%%%% 

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