| article html file updated | 9 February 2020 03:25 CET | Update | https://www.mdpi.com/2077-1444/9/1/24 |
| article html file updated | 2 May 2019 01:32 CEST | Update | - |
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| article html file updated | 1 February 2018 07:47 CET | Update | - |
| article html file updated | 17 January 2018 15:41 CET | Original file | - |
| article xml uploaded. | 17 January 2018 15:40 CET | Original file | https://www.mdpi.com/2077-1444/9/1/24/xml |
| article pdf uploaded. | 17 January 2018 15:40 CET | Version of Record | https://www.mdpi.com/2077-1444/9/1/24/pdf |
