TY - JOUR A1 - RĂ¼ster, R. A1 - Schlegel, K. T1 - Non-magnetic aspect sensitive auroral echoes from the lower E region observed at 50 MHz JO - Ann. Geophys. J1 - ANGEO VL - 17 IS - 10 SP - 1284 EP - 1292 Y1 - 1999/10/31 PB - Springer Verlag SN - 1432-0576 UR - https://angeo.copernicus.org/articles/17/1284/1999/ L1 - https://angeo.copernicus.org/articles/17/1284/1999/angeo-17-1284-1999.pdf DO - 10.1007/s00585-999-1284-x ER -