Hey guys, So my IB World History IA is about whether Ronald Reagans SDI played a prominent role in ending the cold war, and I found this article source called "Did Star Wars Help End the Cold War? Soviet Response to the SDI Program," It was a really informative secondary source. I really want to use it but the problem is that it tackles the same exact question I am addressing, literally. So, would it be okay for me to use and cite it as a secondary source, or should I avoid it due to the similarity between the research questions. Thanks in advance!