1. Alvino A., Trombetti G., Lions P.-L.: On optimization problems with prescribed rearrangements. Nonlinear Anal. 13(2), 185–220 (1989)
2. Aly J.-J.: On the lowest energy state of a collisionless self-gravitating system under phase volume constraints. MNRAS 241, 15 (1989)
3. Antonov A.V.: Remarks on the problem of stability in stellar dynamics. Soviet Astr., AJ. 4, 859–867 (1961)
4. Antonov A.V.: Solution of the problem of stability of a stellar system with the Emden density law and spherical velocity distribution. J. Leningrad Univ. Se. Mekh. Astro. 7, 135–146 (1962)
5. Arnold V.I.: Conditions for nonlinear stability of stationary plane curvilinear flows of an ideal fluid. Sov. Math. Dokl. 6, 773–776 (1965)