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    Typical Behaviour of the High Latitude Lower Ionosphere

    Friedrich, M. | Online Contents | 1995

    Typical Behaviour of the High Latitude Lower Ionosphere

    Friedrich, M. / Torkar, K. M. / Committee on Space Research; Scientific Commission C | British Library Conference Proceedings | 1995

    Towards neural network based models for the ionospheric D-region

    McKinnell, L.-A. / Friedrich, M. / European Space Agency et al. | British Library Conference Proceedings | 2003

    Timetable-Based Transit Assignment Using Branch and Bound Techniques

    Friedrich, M. / Hofsaess, I. / Wekeck, S. et al. | British Library Conference Proceedings | 2001

    The quiet auroral ionosphere and its neutral background

    Friedrich, M. | Online Contents | 2004

    The DROPPS Program to Study the Polar Summer Mesosphere

    Goldberg, R. A. / Plaff, R. F. / Holzworth, R. H. et al. | British Library Conference Proceedings | 2001

    The D-Region Background at High Latitudes

    Friedrich, M. / Kirkwood, S. / International Council of Scientific Unions; Committee on Space Research; Scientific Commission C | British Library Conference Proceedings | 1999

    The disturbed auroral ionosphere based on EISCAT and rocket data

    Friedrich, M. | Online Contents | 2004

    The Charge Balance in the Presence of Meteoric Smoke in the Upper Mesosphere under Winter Conditions - Preliminary Results

    Hoppe, U.-P. / Friedrich, M. / Blix, T.A. et al. | British Library Conference Proceedings | 2011

    Results from a new auroral lower ionosphere model

    McKinnell, L. A. / Friedrich, M. / COSPAR | British Library Conference Proceedings | 2006

      Results from a new auroral lower ionosphere model

      McKinnell, L. A. / Friedrich, M. / COSPAR | British Library Conference Proceedings | 2006

    Propagation of Electromagnetic Waves in the Lower Ionosphere of Titan

    Schwingenschuh, K. / Molina-Cuberos, G. J. / Eichelberger, H. U. et al. | British Library Conference Proceedings | 2001

    Perturbations in EISCAT electron densities visualised by normalisation

    Friedrich, M. | Online Contents | 2006

    NITTANYSAT - A Student Satellite Mission for D-Region Study and Calibration of Riometers

    Friedrich, M. / European Space Agency | British Library Conference Proceedings | 2007

    MALTED: a rocket/radar study of dynamics and turbulence in the equatorial mesopause region

    Goldberg, R. A. / Friedrich, M. / Lehmacher, G. A. et al. | British Library Online Contents | 1995

    Long-Term Trends and other Residual Features of the Lower Ionosphere

    Friedrich, M. / Torkar, K. M. / European Space Agency et al. | British Library Conference Proceedings | 2001

    Ionospheric Constraints for Mesospheric Nitric Oxide Based on Empirical Models of the D-Region

    Friedrich, M. / Torkar, K. M. / International Council of Scientific Unions; Committee on Space Research; Scientific Commission C | British Library Conference Proceedings | 1999

    Investigation of atmospheric neutral constituents by photoionization techniques

    Croskey, C. L. / Mitchell, J. D. / Friedrich, M. et al. | British Library Conference Proceedings | 2003

    In Situ Observations of a Dying Sporadic E-Layer

    Friedrich, M. / Torkar, K. / Rapp, M. et al. | British Library Conference Proceedings | 2009

    Initial Results of a Rocket-Based Study of Gravity Wave Effects on Photoionization in the Middle Atomosphere

    Croskey, C. L. / Mitchell, J. D. / Friedrich, M. et al. | British Library Conference Proceedings | 2003

    First results of the polar cap ionosphere based on EISCAT Svalbard and Heiss Island rocket data

    Friedrich, M. / Egger, G. / Torkar, K. M. et al. | British Library Conference Proceedings | 2006

      First results of the polar cap ionosphere based on EISCAT Svalbard and Heiss Island rocket data

      Friedrich, M. / Egger, G. / Torkar, K. M. et al. | British Library Conference Proceedings | 2006

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