What is the term for using articles that you have found in a reference list of an article?

Question

I am doing a systematic review as a part of research I've been working on all summer in my undergrad and need to figure out this term to include in my methodology, to explain how I got some of the articles.

So, what is the term for using articles that you found in a reference list of an article? So for example, I read a paper on prostate cancer, go to the reference list and use some of the articles from there too in my review. What is that process called? Thanks in advance to any that can help me out!

Answer 1

i think it may be refered literature

Answer 2

You should not use items in your bibliography that you have not read or used yourself./