@article{1475069,
      author = {Sturm, Robert,},
      url = {http://library.usi.edu/record/1475069},
      title = {Zirkon : Licht- und elektronenmikroskopische Studien zum  akzessorischen Mineral /},
      recid = {1475069},
      pages = {1 online resource (136 pages) :},
}