1. Ashida, Y., Arashiba, K., Nakajima, K. & Nishibayashi, Y. Nature 568, 536–540 (2019).
2. Hager, T. The Alchemy of Air (Random House, 2009).
3. Schlögl, R. Angew. Chem. Int. Edn 42, 2004–2008 (2003).
4. Smil, V. Enriching the Earth: Fritz Haber, Carl Bosch, and the Transformation of World Food Production (MIT Press, 2001).
5. Appl, M. in Ullmann’s Encyclopedia of Industrial Chemistry 2012 Vol. 3, 139−225 (Wiley, 2012).