| article html file updated | 11 February 2020 14:40 CET | Update | https://www.mdpi.com/2199-8531/5/1/8 |
| article html file updated | 14 October 2019 16:45 CEST | Update | - |
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| article html file updated | 26 February 2019 09:45 CET | Original file | - |
| article pdf uploaded. | 26 February 2019 09:43 CET | Updated version of record | https://www.mdpi.com/2199-8531/5/1/8/pdf |
| article xml uploaded. | 26 February 2019 09:43 CET | Update | https://www.mdpi.com/2199-8531/5/1/8/xml |
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| article pdf uploaded. | 8 February 2019 16:55 CET | Version of Record | https://www.mdpi.com/2199-8531/5/1/8/pdf-vor |
| article xml file uploaded | 8 February 2019 16:55 CET | Original file | - |