| article html file updated | 10 February 2020 19:30 CET | Update | https://www.mdpi.com/2076-3387/8/4/67 |
| article html file updated | 9 October 2019 23:41 CEST | Update | - |
| article html file updated | 28 April 2019 12:34 CEST | Update | - |
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| article html file updated | 26 December 2018 10:29 CET | Update | - |
| article html file updated | 3 November 2018 07:43 CET | Original file | - |
| article pdf uploaded. | 3 November 2018 07:42 CET | Version of Record | https://www.mdpi.com/2076-3387/8/4/67/pdf |
| article xml uploaded. | 3 November 2018 07:42 CET | Update | https://www.mdpi.com/2076-3387/8/4/67/xml |
| article xml file uploaded | 3 November 2018 07:42 CET | Original file | - |
