[Vautrin]

If she referred to the author and the original piece and did not copy pages she will get away with it.

References are actually quite annoying as every country apparently has its own standard on how to reference; and sometimes different organisations in the same country adhere to different rules.

Sometimes it happens that an author gets credited with one or two lines, and page after page of the original piece is copied into the paper. Which is definitely not done (where is the originality of thought?). If I quoted a book on theoretical physics from the first word to the last, would I have shown any understanding of the subject?

Both instances are infringements on copyright. And either offence suggests the author would not have a sufficient understanding of the subject.