Time and scale size of planetary wave signatures in the ionospheric F region: Role of the geomagnetic activity and mesosphere/lower thermosphere winds von Altadill, D., Apostolov, E. M.

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Vertical structure of a gravity wave like oscillation in the ionosphere generated by the solar eclipse of August 11, 1999 von Altadill, D., Solé, J. G., Apostolov, E. M.

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The 22-year cycle in the geomagnetic 27-day recurrences reflecting on the F2-layer ionization von APOSTOLOV, E. M, ALTADILL, D, TODOROVA, M

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Six-day westward propagating wave in the maximum electron density of the ionosphere von ALTADILL, D, APOSTOLOV, E. M, JACOBI, Ch, MITCHELL, N. J

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Vertical development of the 2-day wave in the midlatitude ionospheric F region von Altadill, D., Apostolov, E. M.

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First observation of quasi-2-day oscillations in ionospheric plasma frequency at fixed heights von ALTADILL, D, SOLE, J. G, APOSTOLOV, E. M

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Spectral energy contributions of quasi-periodic oscillations (2-35 days) to the variability of the foF2 von APOSTOLOV, E. M, ALTADILL, D, HANBABA, R

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Origin and development of vertical propagating oscillations with periods of planetary waves in the ionospheric F region von Altadill, D., Apostolov, E.M., Solé, J.G., Jacobi, Ch

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Planetary and gravity wave signatures in the F-region ionosphere with impacton radio propagation predictionsand variability von D. Altadill, E. M. Apostolov, J. Boska, J. Lastovicka, P. Sauli

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Model of non-monotonically growing N(h) profiles of the lower ionosphere under non-flare conditions von Apostolov, E M

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Vertical development of the 2-day wave in the midlatitude ionospheric F region von Altadill, D, Apostolov, E M

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Vertical propagating signatures of wave-type oscillations (2- and 6.5-days) in the ionosphere obtained from electron-density profiles von Altadill, David, Apostolov, Emil M

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Vertical structure of a gravity wave like oscillation in the ionosphere generated by the solar eclipse of August 11, 1999 von Altadill, D, Sole, J G, Apostolov, E M

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Long-term prediction of the foF2 on the rising and falling parts of the solar cycle von Apostolov, E.M., Alberca, L.F., Pancheva, D.

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Quasi-biennial oscillation in sunspot activity von Apostolov, E M

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Some seasonal hemispheric similarities in f(0)F2 quasi-2-day oscillations von Altadill, D, Apostolov, E M, Alberca, L

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Some seasonal hemispheric similarities in ƒ o F2 quasi-2-day oscillations von Altadill, D., Apostolov, E. M., Alberca, L.

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Some seasonal hemispheric similarities in fF2 quasi-2-day oscillations von Altadill, D, Apostolov, E M, Alberca, L

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Some seasonal hemispheric similarities in f0F2 quasi-2-day oscillations von ALTADILL, D, APOSTOLOV, E. M, ALBERCA, L

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Long-term variation of the semi-annual wave maxima in geomagnetic activity von APOSTOLOV, E. M, LETFUS, V

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