What is mentioned in the famous article by Edmund Gettier

The paper analyzes the problem of interpretations Gettier problem. author draws a distinction between counterexamples presented in Edmund Gettier’s article and Gettier-style cases, general epistemological supposedly occurring all or many cases. It is argued that there gap associated with an insufficiently defined concept justification, which does not allow talking about without any explicit implicit interpretation his views on justification. Along this, it indicated same justification has strict features (deductive closure principle, non-factive internalism), do arbitrary problem, therefore we can say some are closer to text well-known article.