| article html file updated | 9 February 2020 11:56 CET | Update | https://www.mdpi.com/1996-1944/11/4/531 |
| article html file updated | 2 October 2019 03:30 CEST | Update | - |
| article html file updated | 1 May 2019 07:16 CEST | Update | - |
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| article html file updated | 2 May 2018 13:57 CEST | Update | - |
| article html file updated | 30 March 2018 13:02 CEST | Original file | - |
| article xml uploaded. | 30 March 2018 13:00 CEST | Original file | https://www.mdpi.com/1996-1944/11/4/531/xml |
| article pdf uploaded. | 30 March 2018 13:00 CEST | Version of Record | https://www.mdpi.com/1996-1944/11/4/531/pdf |
