Spread F plasma bubble vertical rise velocities determined from spaced ionosonde observations

Spread-Es structure producing apparent small scale structure in the F-region

Spread-F and radio wave scintillations near the F-region anomaly crest

Spread-F during quiet and disturbed periods at midlatitudes

Spread-F occurrence in mid- and low-latitude regions related to various levels of geomagnetic activity

Spread-F-like irregularities observed by the Jicamarca radar during the day-time

Springtime effects in the mesosphere and ionosphere observed at northern midlatitudes

SSM/T forward modelling using neural networks.

Stability borders and classification of density perturbation propagations in deDonder-gauge on a cosmological background

Stability of a shell around a black hole

Stability of gas clouds near quasi-stellar objects

Stability of open universes

Stability of the auroral plasma - Parallel and perpendicular propagation of electrostatic waves

Stability of the stationary motions of a tethered system of two bodies in orbit under the effect of gravitational and aerodynamic forces

Stable and rugged etalon for the Dynamics Explorer Fabry-Perot interferometer. I - Design and construction

Stable and rugged etalon for the Dynamics Explorer Fabry-Perot interferometer. II - Performance

Standing accretion shock waves around rotating black holes in presence of cooling

Standing acoustic-gravity waves in the high-latitude atmosphere with allowance for the rotation of the earth

Standing wave patterns in VLF hiss

Standing waves observed at the dayside magnetopause