| article html file updated | 9 February 2020 04:57 CET | Update | https://www.mdpi.com/1996-1944/11/2/217 |
| article html file updated | 30 September 2019 09:06 CEST | Update | - |
| article html file updated | 1 May 2019 22:15 CEST | Update | - |
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| article html file updated | 14 March 2018 15:30 CET | Update | - |
| article html file updated | 31 January 2018 05:20 CET | Original file | - |
| article xml uploaded. | 31 January 2018 05:19 CET | Original file | https://www.mdpi.com/1996-1944/11/2/217/xml |
| article pdf uploaded. | 31 January 2018 05:19 CET | Version of Record | https://www.mdpi.com/1996-1944/11/2/217/pdf |
