1. Simple solutions of fireball hydrodynamics for self-similar elliptic flows;S V Akkelin;Phys. Lett. B,2001
2. Simple analytic solution of fireball hydrodynamics. Cent;T Cs�rg?;Eur. J. Phys,2004
3. New family of exact and rotating solutions of fireball hydrodynamics;T Cs�rg?;Phys. Rev. C,2014