Bertolani, Roberto, Paul J. Bartels, Roberto Guidetti, Michele Cesari, and Diane R. Nelson. "Aquatic Tardigrades in the Great Smoky Mountains National Park, North Carolina and Tennessee, U.S.A., with the Description of a New Species of Thulinius (Tardigrada, Isohypsibiidae)." Zootaxa 3764, no. 5 (2014): 524-536.

Bartels, Paul J., Diane R. Nelson, Lukasz Kaczmarek, and Lukasz Michalczyk. "The Genus Milnesium (Tardigrada: Eutardigrada: Milnesiidae) in the Great Smoky Mountains National Park." Zootaxa 3826, no. 3 (2014).

Nelson, Diane R., and Paul J. Bartels. "Species Richness of Soil and Leaf Litter Tardigrades in the Great Smoky Mountains National Park (North Carolina/Tennessee, USA)." Journal of Limnology 72, no. s1 (2013): 144-151.

Bartels, Paul J., Diane R. Nelson, Lukasz Kaczmarek, and Lukasz Michalczyk. "Ramazzottius belubellus, a new species of Tardigrada (Eutardigrada: Parachela: Hypsibiidae) from the Great Smoky Mountains National Park (North Carolina, U.S.A.)." Proceedings of the Biological Society of Washington 124, no. 1 (2011): 23-27.

Bartels, Paul J., Giovanni Pilato, Oscar Lisi, and Diane R. Nelson. "Macrobiotus (Eutardigrada, Macrobiotidae) from the Great Smoky Mountains National Park, Tennessee/North Carolina, USA (North America): Two New Species and Six New Records." Zootaxa, no. 2022 (2009): 45-57.

Bartels, Paul J., Diane R. Nelson, Lukasz Kaczmarek, and Lukasz Michalczyk. "Three New Species and One New Record of the Genus Doryphoribius Pilato, 1969 (Tardigrada: Eutardigrada: Hypsibiidae) from the Great Smoky Mountains National Park (Tennessee, USA)." Journal of Natural History 42, no. 41-42 (2008): 2595-2608.

Bartels, Paul J., Diane R. Nelson, Lukasz Kaczmarek, and Lukasz Michalczyk. "Doryphoribius smokiensis, A New Species of Eutardigrada (hypsibiidae) from the Great Smoky Mountains National Park, TN, USA (North America)." Zootaxa, no. 1646 (2007): 59-65.

Bartels, Paul J., and Diane R. Nelson. An Evaluation of Species Richness Estimators for Tardigrades of the Great Smoky Mountains National Park, Tennessee and North Carolina, USA In Proceedings of the Tenth International Symposium on Tardigrada. Suppl. 1 ed. Vol. 66., 2007.

Nelson, Diane R., and Paul J. Bartels. ""Smoky Bears" - Tardigrades of Great Smoky Mountains National Park." Southeastern Naturalist 6, no. Special Issue 1 (2007): 229-238.

Bartels, Paul J., and Diane R. Nelson. "A Large-Scale, Multihabitat Inventory of the Phylum Tardigrada in the Great Smoky Mountains National Park, USA: A Preliminary Report." Hydrobiologia 558, no. 1 (2006): 111-118.