@article{961003,
      author = {Freire, Dulce, and Lains, Pedro,},
      url = {http://library.usi.edu/record/961003},
      title = {An agrarian history of Portugal, 1000-2000 : economic  development on the European frontier /},
      recid = {961003},
      pages = {1 online resource (361 pages) :},
}