The Bohlen-Pierce Site
Correspondence between Ernst Terhardt and Heinz Bohlen

 

1. Terhardt's letter (original archived at Huygens-Fokker Foundation, Amsterdam)
in response to Bohlen's manuscript of July 1974 (sent to Terhardt by Herbert Döring, RWTH Aachen)

 

 

 

 

2. Bohlen's response to Terhardt's letter above
(carbon copy archived at Huygens-Fokker Foundation, Amsterdam)

 

 

 

 

 

3. Terhardt's letter (original archived at Huygens-Fokker Foundation, Amsterdam)
in response to Bohlen's manuscript of December 1975 which was published in Acustica in 1978