Natural Resources Defense Council - "U.S. Nuclear Weapons in Europe"(PDF). Archived from the original(PDF) on 2007-09-27. Retrieved 2007-10-26. (3.00 MB), article retrieved 26 October 2007,
Natural Resources Defense Council - "U.S. Nuclear Weapons in Europe"(PDF). Archived from the original(PDF) on 2007-09-27. Retrieved 2007-10-26. (3.00 MB), article retrieved 26 October 2007,