Solar-wind velocity decreases

Solitary sound pulses via electron-vortex distribution in partially ionized plasmas

Solitary waves in coronal holes-predicted signatures close to the sun

Solution of the inverse problem of transionospheric sounding

Solution of the inverse vertical-sounding problem on the basis of Volterra equations of the second kind

Solutions for static gas spheres in general relativity

Somatic cell fusion during sounding rocket flight

Some aspects of a global thermospheric density model deduced from the analysis of the orbit of Intercosmos 13 rocket (1975-22B)

Some aspects of small-scale stratifications at E-layer and F2-layer levels of the daytime mid-latitude ionosphere

Some characteristics of spread F at the magnetic equatorial station Fortaleza

Some characteristics of the parallel electric field acceleration of electrons over discrete auroral arcs as observed from two rocket flights

Some contributions of the ISIS program towards advances in knowledge of low latitude ionospheric phenomena

Some effects produced by the ionosphere on radio interferometry - Fluctuations in apparent source position and image distortion

Some features of h-type Es at Uppsala

Some features of pararesonance /PR/ whistlers

Some features of the deceleration of a neutral gas cloud in a rarefied atmosphere

Some initial results on mid-latitude spread-F irregularities using a directional ionosonde

Some new exact models for the outer layers of a non-static gas sphere in general relativity

Some possible space interferometry applications

Some post-war developments in ground-based radiowave sounding of the ionosphere