| article html file updated | 9 February 2020 13:47 CET | Update | https://www.mdpi.com/1996-1073/11/4/933 |
| article html file updated | 2 October 2019 14:45 CEST | Update | - |
| article html file updated | 1 May 2019 03:33 CEST | Update | - |
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| article xml uploaded. | 17 April 2018 10:02 CEST | Update | https://www.mdpi.com/1996-1073/11/4/933/xml |
| article pdf uploaded. | 17 April 2018 10:02 CEST | Updated version of record | https://www.mdpi.com/1996-1073/11/4/933/pdf |
| article html file updated | 14 April 2018 07:49 CEST | Original file | - |
| article pdf uploaded. | 14 April 2018 07:48 CEST | Version of Record | https://www.mdpi.com/1996-1073/11/4/933/pdf-vor |