If I ask my buddy for help I'm not considering that part of research or learning I consider that leaning on their potential expertise. You're not learning shit on how to build a house just because you ask your friend to build one for you.
If we're talking about research as in actually attempting to learn and get to the heart of a matter then yes. You should be cross referencing everything.
If we're talking about research as in actually attempting to learn and get to the heart of a matter then yes. You should be cross referencing everything.