AU or Apuntes Universitarios (University Notes) was a free monthly magazine of Colegio Mayor Chaminade, Madrid. Founded as Apuntes Universitarios in 1969, from issue #13 known as AU. Ceased in 1974. (fortunecity/pachi2)
AU was essentially a music magazine edited by students and people from radio Popular FM.
Below: Extra #23, April 1974.