| article html file updated | 9 February 2020 00:34 CET | Update | https://www.mdpi.com/2412-3811/2/4/23 |
| article html file updated | 29 September 2019 08:08 CEST | Update | - |
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| article html file updated | 18 April 2019 05:21 CEST | Update | - |
| article html file updated | 19 December 2017 14:14 CET | Original file | - |
| article xml uploaded. | 19 December 2017 14:13 CET | Update | https://www.mdpi.com/2412-3811/2/4/23/xml |
| article xml uploaded. | 19 December 2017 14:13 CET | Original file | - |
| article pdf uploaded. | 19 December 2017 14:13 CET | Version of Record | https://www.mdpi.com/2412-3811/2/4/23/pdf |
