@article {ARC28531,
	title = {Nitrate is an important nitrogen source for Arctic tundra plants},
	journal = {Proceedings of the National Academy of Sciences},
	volume = {115},
	year = {2018},
	month = {03//2018},
	pages = {3398 - 3403},
	keywords = {Arctic tundra plants, nitrogen dynamics, plant nitrate, soil nitrate, stable isotopes},
	issn = {0027-8424},
	doi = {10.1073/pnas.1715382115},
	url = {http://www.pnas.org/lookup/doi/10.1073},
	author = {Xue-Yan Liu and Keisuke Koba and Lina A. Koyama and Sarah E. Hobbie and M. Weiss and Inagaki, Yoshiyuki and Gaius R Shaver and Anne E. Giblin and S. Hobara and K. J. Nadelhoffer and M. Sommerkorn and Edward B Rastetter and George W Kling and J. A. Laundre and Midori Yano and Akiko Makabe and Y. Yano and Liu, Cong-Qiang}
}
@article {ARC22176,
	title = {Convergence of soil nitrogen isotopes across global climate gradients},
	journal = {Scientific Reports},
	volume = {5},
	year = {2015},
	month = {02/2015},
	pages = {8280},
	doi = {10.1038/srep08280},
	author = {Joseph M. Craine and W. T. Baisden and A. J. Elmore and L. Augusto and E. N. J. Brookshire and M. D. Cramer and N. J. Hasselquist and Erik A. Hobbie and A. Kahmen and Keisuke Koba and J. M. Kranabetter and Michelle C. Mack and E. Marin-Spiotta and J. R. Mayor and K. K. McLauchlan and A. Michelsen and G. B. Nardoto and R. S. Oliveira and S. S. Perakis and P. L. Peri and Carlos A Quesada and A. Richter and Gaius R Shaver and B. A. Stevenson and B. L. Turner and R. A. G Viani and W. Wanek and L. Wang and B. Zeller}
}
@article {ARC22372,
	title = {Geochemical influences on solubility of soil organic carbon in arctic tundra ecosystems},
	journal = {Soil Science Society of America Journal},
	volume = {77},
	year = {2013},
	month = {2013/3},
	pages = {473-481},
	isbn = {0361-5995},
	doi = {10.2136/sssaj2012.0199},
	url = {https://www.crops.org/publications/sssaj/abstracts/77/2/473},
	author = {S. Hobara and Keisuke Koba and Ae Noriharu and Anne E. Giblin and K. Kushida and Gaius R Shaver}
}
@article {ARC22373,
	title = {Nitrogen fixation in surface soils and vegetation in an Arctic tundra watershed: A key source of atmospheric nitrogen},
	journal = {Arctic, Antarctic and Alpine Research},
	volume = {38},
	year = {2006},
	pages = {363-372},
	isbn = {1523-0430},
	doi = {10.1657/1523-0430(2006)38\%5B363:Nfissa\%5D2.0.Co;2},
	author = {S. Hobara and C. McCalley and Keisuke Koba and Anne E. Giblin and M. Weiss and Gretchen M. Gettel and Gaius R Shaver}
}
