@INPROCEEDINGS{dotlacil+09,

author={Jakub {Dotla\v cil} and {\O ystein} Nilsen},

title={{\em The others} compared to {\em each other} --  {Consequences} for the

 theory of reciprocity},

year={2009},

pages = {248--265},

booktitle={Proceedings of {SALT XVIII, 2008}},

note={Available at http://hdl.handle.net/1813/13038},

}