1. G. Booth, Ullmann’s Encyclopedia of Industrial Chemistry (Wiley, Weinheim, 2005)
2. K. Schofield, Aromatic Nitrations (Cambridge University Press, Cambridge, 1980)
3. G.A. Olah, R. Malhotra, S.C. Narang, Nitration: Methods and Mechanisms (VCH, New York, 1989)
4. G. Yan, M. Yanga, Org. Biomol. Chem. 11, 2554 (2013)
5. R.J. Gillespie, J. Graham, E.D. Hughes, C.K. Ingold, E.R. Peeling, Nature 158, 480 (1946)