Fabien Lange Michel Grabisch New axiomatizations of the Shapley interaction index for bi-capacities. 198-203 2005 EUSFLAT Conf. http://www.eusflat.org/proceedings/EUSFLAT-LFA_2005/papers/JEL116.pdf conf/eusflat/2005 db/conf/eusflat/eusflat2005.html#LangeG05