1. On continuity and smoothness of group actions;Chernoff, P.;Bull. Amer. Math. Soc.,1970
2. On the behaviour of the solutions of the equations of hydrodynamics as the Reynolds number passes through a critical value;Brušlinskaja, N. N.;Dokl. Akad. Nauk SSSR,1965
3. Groups of diffeomorphisms and the motion of an incompressible fluid;Ebin, David G.;Ann. of Math. (2),1970
4. The Einstein evolution equations as a first-order quasi-linear symmetric hyperbolic system. I;Fischer, Arthur E.;Comm. Math. Phys.,1972
5. Sur le comportement global des solutions non-stationnaires des équations de Navier-Stokes en dimension 2;Foiaş, C.;Rend. Sem. Mat. Univ. Padova,1967