Tuhina Samanta Prasun Ghosal Hafizur Rahaman Parthasarathi Dasgupta Revisiting fidelity: a case of elmore-based Y-routing trees. 27-34 2008 SLIP http://doi.acm.org/10.1145/1353610.1353616 conf/slip/2008 db/conf/slip/slip2008.html#SamantaGRD08