Brereton, N. J., Pitre, F. E., Shield, I., Hanley, S. J., Ray, M. J., Murphy, R. J., & Karp, A. (2014). Insights into nitrogen allocation and recycling from nitrogen elemental analysis and 15N isotope labelling in 14 genotypes of willow. Oxford University Press.

Brereton, Nicholas J.B., Frederic E. Pitre, Ian Shield, Steven J. Hanley, Michael J. Ray, Richard J. Murphy, and Angela Karp. Insights Into Nitrogen Allocation and Recycling From Nitrogen Elemental Analysis and 15N Isotope Labelling in 14 Genotypes of Willow. Oxford University Press, 2014.

Brereton, Nicholas J.B., et al. Insights Into Nitrogen Allocation and Recycling From Nitrogen Elemental Analysis and 15N Isotope Labelling in 14 Genotypes of Willow. Oxford University Press, 2014.