| article html file updated | 9 February 2020 05:07 CET | Update | https://www.mdpi.com/1996-1944/11/2/226 |
| article html file updated | 30 September 2019 10:07 CEST | Update | - |
| article html file updated | 1 May 2019 21:53 CEST | Update | - |
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| article html file updated | 14 March 2018 15:33 CET | Update | - |
| article html file updated | 1 February 2018 06:27 CET | Original file | - |
| article xml uploaded. | 1 February 2018 06:26 CET | Original file | https://www.mdpi.com/1996-1944/11/2/226/xml |
| article pdf uploaded. | 1 February 2018 06:26 CET | Version of Record | https://www.mdpi.com/1996-1944/11/2/226/pdf |
