Acknowledging Work

I've just completed a series of user studies with some of my master students, the analyses of which will be part of their theses. In the studies we used the EZ-Robot along with some plugins developed by the community, for example the Watson and Kinect plugins, made available by @ptp. I'm wondering how to acknowledge the work made available by community users. Will a link to the plugin suffice, or do you have any other preferences? I am asking, @ptp specifically, and the community in general.