Important remark by the main author.
Our submitted article "Analyzing pace frequencies in bipedal primates and primate "predecessors" reveals mechanisms that prevent foot inversion and thus ensure foot stability at touchdown." has not been published yet, because it is currently under revision.
We are planning to submit a revised version of the present manuscript in due time - possibly 2015 / 2016.
Koos Jaap van Zwieten, University of Hasselt, Belgium, 1st Author.