| article html file updated | 9 February 2020 02:54 CET | Update | https://www.mdpi.com/2412-3811/3/1/2 |
| article html file updated | 2 May 2019 02:34 CEST | Update | - |
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| article html file updated | 28 March 2019 15:12 CET | Update | - |
| article html file updated | 12 January 2018 15:57 CET | Original file | - |
| article xml uploaded. | 12 January 2018 15:56 CET | Original file | https://www.mdpi.com/2412-3811/3/1/2/xml |
| article pdf uploaded. | 12 January 2018 15:56 CET | Version of Record | https://www.mdpi.com/2412-3811/3/1/2/pdf |
