Attribution-NonCommercial-NoDerivs 3.0 United States

This is a postprint version of an article originally puublished at https://doi.org/10.1016/j.jocd.2017.12.003
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 United States This is a postprint version of an article originally puublished at https://doi.org/10.1016/j.jocd.2017.12.003