controversies on driver node identificaiton

In a PONE paper on driver node in cancer networks, a reader commented on different ways to identify driver nodes.

http://journals.plos.org/plosone/article/comment?id=10.1371/annotation/fa7b59e2-c5b0-4e34-b2bc-da5d4eef0ee5


Nacher J, Akutsu T (2012) Dominating scale-free networks with variable scaling exponent: heterogeneous networks are not difficult to control - Abstract - New Journal of Physics - IOPscience. New Journal of Physics 14.

There more recent papers on controllability outside of Liu and Barabasi group.