List invited, co-authored conference presentation on CV as student As a student (M.Sc.), my list of publications is as short as my career would suggest. For an invited talk at a conference that my professor gave, parts of my work were presented and I was consequently officially listed as a co-author.

Refining my CV for the application to a PhD position now, do I list this on my CV in the "Publications" section? I've read that this can be interpreted as "blowing up" your CV in some cases, which is really not my intention. But given that people in my career stage normally haven't had a whole lot of opportunities to show their work in public, this might still be of interest.

Thus my question: should I include it or not?
If you are listed as a co-author, I'd say yes, include it. You could list it in a separate section of your cv below other, more personal work. If you are asked about it, you can describe it as you do here. This is even better if the reason for the invitation was the work itself and not only the stature of the professor. 

But it would also be good to get advice from your professor on this.