It is extremely important to be able to recognize reliable information. After all, substantiating your report with incorrect information undermines all your work. So what do you have to look out for? Here are 2 checklists of the most important elements / assessment criteria for reliability. And also an example of a scientific article.
Checklist for assessing sources (Boekhorst, Kwast & Wevers, 2004, pp. 241-247).