@article{, note = {Distributed to some depository libraries in microfiche.}, url = {http://library.usi.edu/record/254797}, title = {Developing the next generation air traffic management system : hearing before the Subcommittee on Space and Aeronautics, Committee on Science, House of Representatives, One Hundred Seventh Congress, first session, July 19, 2001.}, publisher = {U.S. G.P.O. :}, number = {Serial no. 107-6 (United States. Congress. House. Committee on Science)}, recid = {254797}, pages = {iii, 54 p. :}, address = {Washington :}, year = {2001}, }