TY - JOUR A1 - Pedersen, T. A1 - Esposito, R. A1 - Kendall, E. A1 - Sentman, D. A1 - Kosch, M. A1 - Mishin, E. A1 - Marshall, R. T1 - Observations of artificial and natural optical emissions at the HAARP facility JO - Ann. Geophys. J1 - ANGEO VL - 26 IS - 5 SP - 1089 EP - 1099 Y1 - 2008/05/28 PB - Copernicus Publications SN - 1432-0576 UR - https://angeo.copernicus.org/articles/26/1089/2008/ L1 - https://angeo.copernicus.org/articles/26/1089/2008/angeo-26-1089-2008.pdf DO - 10.5194/angeo-26-1089-2008 ER -