write a research paper about the book hamlet by shakespeare No more than one in-text citation per article http://www.theatrehistory.com/british/hamlet002.html http://www.shakespeare-online.com/plays/hamlet/antichamlet.html https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2600173/ http://www.houseofideas.com/mscornelius/resources/hamlet/hamlet_vol_35__madness_277101-.pdf https://cather.unl.edu/writings/nonfiction/nf064