| article html file updated | 9 February 2020 10:49 CET | Update | https://www.mdpi.com/1996-1944/11/4/475 |
| article html file updated | 1 October 2019 20:57 CEST | Update | - |
| article html file updated | 1 May 2019 09:38 CEST | Update | - |
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| article html file updated | 2 May 2018 13:39 CEST | Update | - |
| article html file updated | 22 March 2018 13:22 CET | Original file | - |
| article xml uploaded. | 22 March 2018 13:20 CET | Update | https://www.mdpi.com/1996-1944/11/4/475/xml |
| article pdf uploaded. | 22 March 2018 13:20 CET | Version of Record | https://www.mdpi.com/1996-1944/11/4/475/pdf |
