About this article
Published Online: Dec 24, 2018
Page range: 3 - 18
DOI: https://doi.org/10.2478/perc-2018-0020
Keywords
© 2018 Stephen R. Holmes, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Holmes, Stephen R.
University of St Andrews