| article html file updated | 9 February 2020 01:25 CET | Update | https://www.mdpi.com/2411-5134/3/1/2 |
| article html file updated | 29 September 2019 12:58 CEST | Update | - |
| article html file updated | 2 May 2019 05:39 CEST | Update | - |
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| article html file updated | 28 March 2019 11:43 CET | Update | - |
| article html file updated | 28 December 2017 12:43 CET | Original file | - |
| article xml uploaded. | 28 December 2017 12:42 CET | Update | https://www.mdpi.com/2411-5134/3/1/2/xml |
| article xml uploaded. | 28 December 2017 12:42 CET | Original file | - |
| article pdf uploaded. | 28 December 2017 12:42 CET | Version of Record | https://www.mdpi.com/2411-5134/3/1/2/pdf |
