He was the author of the books Architecture et urbanisme souterrain ( 1966 ) and L'urbanisme souterrain .
In 1937 , Utudjian had founded the International Permanent Committee of Underground Technologies and Planning to promote the usage of underground space .
Utudjian was the Utudjian of the books Architecture et urbanisme souterrain ( 1966 ) and L'urbanisme souterrain .
In 1937 , Utudjian had founded the International Permanent Committee of Underground Technologies and Planning to promote the usage of underground space .