| article html file updated | 9 February 2020 12:40 CET | Update | https://www.mdpi.com/1996-1073/11/4/855 |
| article html file updated | 2 October 2019 07:40 CEST | Update | - |
| article html file updated | 1 May 2019 05:49 CEST | Update | - |
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| article html file updated | 1 May 2018 09:09 CEST | Update | - |
| article html file updated | 5 April 2018 15:45 CEST | Original file | - |
| article xml uploaded. | 5 April 2018 15:44 CEST | Update | https://www.mdpi.com/1996-1073/11/4/855/xml |
| article pdf uploaded. | 5 April 2018 15:44 CEST | Version of Record | https://www.mdpi.com/1996-1073/11/4/855/pdf |
