While searching through various journals with my library's on-line journal search tools, I have occasionally found short articles which are simply comments on other published papers. These short articles might have various kinds of comments, but generally describe why the first paper's research or theories are flawed. In addition, sometimes I have found replies from the original author of the first paper, responding to these comments, for e.g., to clarify the meaning or perhaps to give further support to their original arguments.
- Do such exchanges generally only occur within the same journal, i.e. the responses are published in the same journal, or can these occur across journals?
- Are there any special tools to assist with locating all of these "replies"?