| article html file updated | 7 February 2020 19:07 CET | Update | https://www.mdpi.com/2304-8158/5/4/83 |
| article html file updated | 22 September 2019 08:57 CEST | Update | - |
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| article html file updated | 30 December 2016 02:06 CET | Update | - |
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| article xml uploaded. | 6 December 2016 08:36 CET | Original file | https://www.mdpi.com/2304-8158/5/4/83/xml |
| article pdf uploaded. | 6 December 2016 08:36 CET | Version of Record | https://www.mdpi.com/2304-8158/5/4/83/pdf |
