Volume 21 provides the basis of the MHD theory in two extended reviews. The first review deals with high-temperature plasma equilibrium and stability in conventional stellarators (the steady state three-dimensional magnetic confinement systems). The second review considers the processes in the stationary plasma thrusters (SPT) created by one of the authors, A.I Morozov.
In spite of the three-dimensional nature of stellarators, the author of the review, V.D. Pustovitov, has been able to give a concise presentation of basic ideas and results of the rather complicated theory of...