Haris Aziz Oded Lachish Mike Paterson Rahul Savani Power Indices in Spanning Connectivity Games. 55-67 2009 AAIM http://dx.doi.org/10.1007/978-3-642-02158-9_7 conf/aaim/2009 db/conf/aaim/aaim2009.html#AzizLPS09