@article{720448,
      note = {"Free companion website"--Cover.},
      author = {Beer, Sven, and Björk, Mats, and Beardall, John, and  Thompson, Steve,},
      url = {http://library.usi.edu/record/720448},
      title = {Photosynthesis in the marine environment [electronic  resource] /},
      recid = {720448},
      pages = {1 online resource (224 pages) :},
}