The Podmoskovnaya Underground Coal Gasification Station (open access)

The Podmoskovnaya Underground Coal Gasification Station

From abstract: "Survey of the Soviet effort in underground coal gasification and summarizes research conducted at the Podmoskovnaya Station until its close in 1963."
Date: May 15, 1981
Creator: Olness, D. U.
System: The UNT Digital Library
Transportation Energy Flows for 1976 (open access)

Transportation Energy Flows for 1976

Diagrams provided for a convenient overview and standardized framework of the United States transportation system.
Date: December 1980
Creator: Kidman, R. B.
System: The UNT Digital Library