About this article
Published Online: Oct 21, 2016
Page range: 3 - 16
DOI: https://doi.org/10.1515/perc-2016-0013
Keywords
© 2016 Richard A. Muller, published by De Gruyter Open
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Muller, Richard A.