Saikat Ray Roch Guérin Rute Sofia Distributed Path Computation Without Transient Loops: An Intermediate Variables Approach. 104-116 2007 conf/teletraffic/2007 International Teletraffic Congress http://dx.doi.org/10.1007/978-3-540-72990-7_13 db/conf/teletraffic/itc2007.html#RayGS07