| article html file updated | 9 February 2020 12:39 CET | Update | https://www.mdpi.com/1996-1073/11/4/849 |
| article html file updated | 2 October 2019 07:34 CEST | Update | - |
| article html file updated | 1 May 2019 05:51 CEST | Update | - |
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| article html file updated | 1 May 2018 09:07 CEST | Update | - |
| article html file updated | 5 April 2018 09:57 CEST | Original file | - |
| article xml uploaded. | 5 April 2018 09:55 CEST | Update | https://www.mdpi.com/1996-1073/11/4/849/xml |
| article pdf uploaded. | 5 April 2018 09:55 CEST | Version of Record | https://www.mdpi.com/1996-1073/11/4/849/pdf |
