TY  - JOUR 
T1  - Analyzing the payoff of a heterogeneous population in the ultimatum game
JO  - Brazilian Journal of Physics
A1  - Silva, Roberto da
A1  - Kellerman, Gustavo Adolfo
SN  - 0103-9733
UL  - 10.1590/S0103-97332007000800003
VL  - 37 
Y1  - 2007
PB  - Brasil 
ER  -