Op den Camp, Rik; et al. "LysM-Type Mycorrhizal Receptor Recruited for Rhizobium Symbiosis in Nonlegume Parasponia". Science331 (6019): 909–912. doi:10.1126/science.1198181.
Dawson, J. O. (2008). "Ecology of actinorhizal plants". Nitrogen-fixing Actinorhizal Symbioses6. Springer. pp. 199–234. doi:10.1007/978-1-4020-3547-0_8.
A. D. Allen, C. V. Senoff (1965). "Nitrogenopentammineruthenium(II) complexes". Journal of the Chemical Society, Chemical Communications (24): 621. doi:10.1039/C19650000621.
Catalytic reduction of molecular nitrogen in solutions A.E. Shilov Russian Chemical Bulletin Volume 52, Number 12, 2555-2562, doi10.1023/B:RUCB.0000019873.81002.60
Reduction of dinitrogen Richard R. Schrock PNAS 14 November 2006 vol. 103 no. 46 17087 doi10.1073/pnas.0603633103
A Cycle for Organic Nitrile Synthesis via Dinitrogen Cleavage John J. Curley, Emma L. Sceats, and Christopher C. Cummins J. Am. Chem. Soc., 2006, 128 (43), pp 14036–14037 doi10.1021/ja066090a
Synthesis and Reactions of Molybdenum Triamidoamine Complexes Containing Hexaisopropylterphenyl Substituents Dmitry V. Yandulov, Richard R. Schrock, Arnold L. Rheingold, Christopher Ceccarelli, and William M. Davis Inorg. Chem.; 2003; 42(3) pp 796–813; (Article) doi10.1021/ic020505l
Catalytic Reduction of Dinitrogen to Ammonia at a Single Molybdenum Center Dmitry V. Yandulov and Richard R. Schrock Science 4 July 2003: Vol. 301. no. 5629, pp. 76–78 doi10.1126/science.1085326
Kazuya Arashiba, Yoshihiro Miyake Yoshiaki Nishibayashi A molybdenum complex bearing PNP-type pincer ligands leads to the catalytic reduction of dinitrogen into ammonia Nature Chemistry Volume: 3, Pages: 120–125 Year published:(2011) doi10.1038/nchem.906
http://www.epa.gov/watertrain/nitroabstr.html US Enivronmental Protection Agency: Human Alteration of the Global Nitrogen Cycle: Causes and Consequences by Peter M. Vitousek, Chair, John Aber, Robert W. Howarth, Gene E. Likens, Pamela A. Matson, David W. Schindler, William H. Schlesinger, and G. David Tilman
"The evolution of nitrogen fixation in cyanobacteria" N. Latysheva, V.L. Junker, W.J. Palmer, G.A. Codd and D. Barker; Bioinformatics; 2012: 28(5) pp 603–606; (Article) DOI|10.1093/bioinformatics/bts008