TY - JOUR A1 - Denisenko, P. F. A1 - Nastasyina, N. V. A1 - Vodolazkin, V. I. T1 - Usage of regularization techniques for effective electron collision frequency determination from oblique ionospheric sounding JO - Ann. Geophys. J1 - ANGEO VL - 14 IS - 8 SP - 811 EP - 815 Y1 - 1996/08/31 PB - Springer Verlag SN - 1432-0576 UR - https://angeo.copernicus.org/articles/14/811/1996/ L1 - https://angeo.copernicus.org/articles/14/811/1996/angeo-14-811-1996.pdf DO - 10.1007/s00585-996-0811-2 ER -