Renormalized entropy solutions for degenerate parabolic-hyperbolic equations with time-space dependent coefficients Zhigang Wang, Lei Wang and Yachun Li Communications on Pure and Applied Analysis (CPAA) (1534-0392) 2013 vol.12 no.3 pp.1163-1182 http://aimsciences.org/journals/contentsListnew.jsp The Katok-Spatzier conjecture, generalized symmetries, and equilibrium-free flows L. Bakker Communic..