@article{NabelekLabotkaHelmsetal.2006,
  author    = {Peter I. Nabelek and Theodore C. Labotka and Thomas S. Helms and Max Wilke},
  title     = {Fluid-mediated polymetamorphism related to proterozoic collision of Archean Wyoming and Superior Provinces in the Black Hills, South Dakota},
  year      = {2006},
}