@article{783514,
      author = {Vaughan, Norman D., and Cleveland-Innes, M., and Garrison,  D. R.},
      url = {http://library.usi.edu/record/783514},
      title = {Teaching in blended learning environments : creating and  sustaining communities of inquiry /},
      recid = {783514},
      pages = {1 online resource (142 pages) :},
}