Michael R. Fellows Daniel Meister Frances A. Rosamond R. Sritharan Jan Arne Telle Leaf Powers and Their Properties: Using the Trees. 402-413 2008 ISAAC http://dx.doi.org/10.1007/978-3-540-92182-0_37 conf/isaac/2008 db/conf/isaac/isaac2008.html#FellowsMRST08