| article html file updated | 9 February 2020 02:43 CET | Update | https://www.mdpi.com/1996-1944/11/1/97 |
| article html file updated | 29 September 2019 20:08 CEST | Update | - |
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| article html file updated | 1 February 2018 14:37 CET | Update | - |
| article html file updated | 11 January 2018 17:07 CET | Original file | - |
| article xml uploaded. | 11 January 2018 17:06 CET | Update | https://www.mdpi.com/1996-1944/11/1/97/xml |
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| article pdf uploaded. | 11 January 2018 17:06 CET | Version of Record | https://www.mdpi.com/1996-1944/11/1/97/pdf |
