| article html file updated | 9 February 2020 06:04 CET | Update | https://www.mdpi.com/2075-4450/9/1/20 |
| article html file updated | 30 September 2019 15:59 CEST | Update | - |
| article html file updated | 1 May 2019 19:43 CEST | Update | - |
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| article html file updated | 27 March 2018 14:33 CEST | Update | - |
| article html file updated | 9 February 2018 18:29 CET | Original file | - |
| article xml uploaded. | 9 February 2018 18:28 CET | Original file | https://www.mdpi.com/2075-4450/9/1/20/xml |
| article pdf uploaded. | 9 February 2018 18:28 CET | Version of Record | https://www.mdpi.com/2075-4450/9/1/20/pdf |
