@article{43488,
      recid = {43488},
      author = {Leff, Gordon.},
      title = {Paris and Oxford universities in the thirteenth and  fourteenth centuries; an institutional and intellectual  history.},
      publisher = {Wiley},
      address = {New York,},
      pages = {viii, 331 p.},
      year = {1968},
      url = {http://library.usi.edu/record/43488},
}