Some lecture notes were not hand-taken (LaTeX PDF-DVI or something else). Lecture slides, homework explanation documents, past midterms or finals, example questions (training for exams) belong to ...

Once upon a time, university lectures were accompanied by the sound of pens scribbling on paper. But if you go into a lecture hall today, you will hear students tapping on laptops.

Those notes are illegal, Faulkner and Moulton contend, since they are derivative works of the professor's copyrighted lectures. If successful, the suit (.pdf) could put an end to a lucrative, but ...