Second VarSITI General Symposium (VarSITI-2017) was held with the financial support of the Russian Foundation for Basic Research, Project No. 17-05-20306.
Cilliers, Pierre, <p>Science, Research and Applications Unit,</p><p>South African National Space Agency,</p><p>Hospital Street, Hermanus,</p><p>P O Box 32, Hermanus, 7200</p>, South Africa
