It looks like 2 of the papers linked to from the RSEND page are no longer available. (?) At least I am not able to open them:
All robots are not created equal: The design and perception of humanoid robot heads
By Carl F. Disalvo et. al
Robot ethics: a view from the philosophy of science
By Guglielmo Tamburrini
It looks like 2 of the papers linked to from the RSEND page are no longer available. (?) At least I am not able to open them: All robots are not created equal: The design and perception of humanoid robot heads By Carl F. Disalvo et. al Robot ethics: a view from the philosophy of science By Guglielmo Tamburrini
https://sites.google.com/knowlabs.com/udacity-robotics-slack/udacity-explores/human-robot-interaction
I also left a message about this in the #hri channel