what is the case Doe v. university Michigan?

Answer 1

google search is going to be a lot faster than asking here:
found in only 5 seconds
http://www.bc.edu/bc_org/avp/cas/comm/free_speech/doe.html
http://www.firstamendmentcenter.org/speech/pubcollege/topic.aspx?topic=campus_speech_codes
http://www2.edutech.nodak.edu/ndsta/hemmer.htm