Geometro-thermodynamics of tidal charged black holes LászlóÁrpád Gergely, Narit Pidokrajt and Sergei Winitzki Eur. Phys. J. C, 71 3 (2011) 1569 Published online: 01 March 2011 DOI: 10.1140/epjc/s10052-011-1569-6