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1993
Smith, David K., and Allen C. Risk. Bryophytes of Sinks Area, Great Smoky Mountains National Park In Final Report. Gatlinburg, Tennessee: Great Smoky Mountain National Park, 1993.
1995
Smith, David K., Kenneth D. McFarland, Allen C. Risk, and Paul G. Davison. Bryophyte and Lichen Survey of Foothills Parkway, Segment 8B, Cosby-Pittman Center, Great Smoky Mountains National Park. Oak Ridge, TN, 1995.
Smith, David K., Kenneth D. McFarland, Allen C. Risk, and Paul G. Davison. Survey of Bryophytes and Lichens Along Foothills Parkway Right-of-Way 8D In Final Report . Pittman Center, TN: Great Smoky Mountains National Park, 1995.