The evolution of maximum body size of terrestrial mammals.
Smith FA, Boyer AG, Brown JH, Costa DP, Dayan T, Ernest SK, Evans AR, Fortelius M, Gittleman JL, Hamilton MJ, Harding LE, Lintulaakso K, Lyons SK, McCain C, Okie JG, Saarinen JJ, Sibly RM, Stephens PR, Theodor J, Uhen MD. The evolution of maximum body size of terrestrial mammals. Science. 2010 Nov 26; 330(6008):1216-9.