United States. General Accounting Office
United States. Congress. Senate. Committee on Finance
Fred J. Sissine
United States
Markus Burger
Daniel S. Kirschen
David G. Victor
Stefan Bouzarovski
United States. Congress. House. Committee on Banking, Finance, and Urban Affairs. Subcommittee on Economic Stabilization.
Gerd Balzer
D. M. Taylor
Jason Makansi
Christoph Hermann
New York (State). State Energy Office.
Richard J. Gilbert
Adrian J. Bradbrook
A. Richard Thompson
Germany