WEBLIOGRAPHY

NASA's ER-2 Aircraft Program http://www.dfrc.nasa.gov/airsci/er-2/index.html   Airborne Science Program at NASA Dryden Flight Research Center http://www.dfrc.nasa.gov/airsci/index.html   Photochemistry of Ozone Loss in the Arctic Region In Summer (POLARIS) Project http://cloud1.arc.nasa.gov/polaris/   NASA K-14 Aeronautics Education Projects http://observe.arc.nasa.gov/nasa/education/edu/edudocs/topic_aero.html