The concepts of quantity of heat and work are deduced in the non-extensive statistical mechanics context, following steps in parallel to those employed in the extensive statistical mechanics.
Nonextensive thermodynamics of the two-site Hubbard model
Thermodynamic potentials and Thermodynamic Relations in Nonextensive Thermodynamics
Comment on ``Temporal scaling at Feigenbaum point and nonextensive thermodynamics" by P. Grassberger
