I think this is a really common issue but I'm having a hard time dealing with this. I have a quite big collection of references which I collected using Mendeley.
Mendeley has a service to update reference with missing fields i.e. finding the right conference proceeding or journal where the publication is from. While this is incredibly useful, it might fail sometime, so I still have a large number of publications without Journal/Proceedings values. I'm also using JabRef which has useful tools to generate citation keys, and suggest cleanup etc.
Is there a tool that, provided authors+title+year can update the metadata? Google Scholar isn't accurate at all: lot of publications are said to be published by "arXiv" which isn't what I'm looking for (well, they are on arXiv but published in a conference right).
Thanks.