| article html file updated | 9 February 2020 10:46 CET | Update | https://www.mdpi.com/1996-1073/11/4/715 |
| article html file updated | 1 October 2019 20:43 CEST | Update | - |
| article html file updated | 1 May 2019 09:45 CEST | Update | - |
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| article html file updated | 1 May 2018 08:28 CEST | Update | - |
| article html file updated | 26 March 2018 11:49 CEST | Update | - |
| article xml uploaded. | 26 March 2018 11:47 CEST | Update | https://www.mdpi.com/1996-1073/11/4/715/xml |
| article pdf uploaded. | 26 March 2018 11:47 CEST | Updated version of record | https://www.mdpi.com/1996-1073/11/4/715/pdf |
| article html file updated | 22 March 2018 10:03 CET | Original file | - |
| article pdf uploaded. | 22 March 2018 10:02 CET | Version of Record | https://www.mdpi.com/1996-1073/11/4/715/pdf-vor |