REPUBLISHING TERMS

You may republish this article online or in print under our Creative Commons license. You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use, you must attribute the article to Dan Voyles and you must include the author’s name in your republication. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original. You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

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License

Creative Commons Attribution-NonCommercial-ShareAlike