An unstable solution of hydromagnetic equations in an infinite plasma cylinder and pulsar magnetic fields - A. Ray, Phys. Fluids, 23 , 898 (1980). adsabs
Hydromagnetic stability of solar coronal arcades : effects of photospheric line-tying - A. Ray and G. Van Hoven, Solar Phys. 79 , 353 (1982).
A boundary coupled generalization of the Newcomb stability criterion - A. Ray and G. Van Hoven, Phys. Fluids 25 , 1355 (1982).
Sufficient condition for the weak minimum of a functional depending on n functions and their derivatives - A. Ray, J. Math. Phys. 24 , 1395 (1983).
Coronal arcades in the Sun and their hydromagnetic stability- A. Ray, in Proc. of IAU Symp. No. 107 on Unstable Current Systems and Plasma Instabilities in Astrophysics, p. 483, (ed. M.R. Kundu, 1985).