Image sources: Wikipedia: Stockholmsutställningen 1930, Wikipedia: Stockholm Exhibition (1930), Kornknarren, Stockholms historia, + my own photos and scans.
Wikipedia: Stockholm Exhibition (1930)
"The fair was significant in the history of architecture in Stockholm, firmly establishing functionalism as the dominant architectural style in Sweden."
"The two head architects were Gunnar Asplund and Sigurd Lewerentz."
"All of the fair buildings were temporary. But the fair's ideas lived on and influenced the shape of Swedish housing for years to come."
If you click the images you might find some more information