Why Does Condensation Not Occur on Externally Protected Stained Glass Windows in English Cathedral?

Title: 
Why Does Condensation Not Occur on Externally Protected Stained Glass Windows in English Cathedral?
Author/Artist: 
Newton, Roy G
Published In: 
no. 33/34, Jan. 1982, pp. 12-19 Corpus Vitrearum Newsletter
Description: 
ill.
Subjects: 
Bib ID: 
AI9529