Working from a bibliography in another aper is not plagiarism. It's actually a pretty good research technique. As you read those papers, check *their* bibliographies, too, and soon you will have pretty thorough coverage. Do note that you cannot just plop those 50-60 or so references into your own bibliography but do nothing else. That's called reference padding and is academic misconduct. You have to actually *read* the papers. When you do that, you may find that some of them don't fit your needs as well as you may have at first thought.