„Intrinsic isotope effects – the holy graal of studies of enzyme‑catalyzed reactions” A. Dybała-Defratyka, R. A. Kwiecień, D. Sicińska and P. Paneth in „Modelling Molecular Structure and Reactivity in Biological Systems” J. Brady, J. Gao K. J. Naidoo, M. Hann, M. Field, (Eds) Royal Society of Chemistry (UK) Special Publication S. No. 303, 2006, 163-173.