| article html file updated | 9 February 2020 10:53 CET | Update | https://www.mdpi.com/1996-1073/11/4/724 |
| article html file updated | 1 October 2019 21:18 CEST | Update | - |
| article html file updated | 1 May 2019 09:30 CEST | Update | - |
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| article html file updated | 29 March 2019 08:56 CET | Update | - |
| article html file updated | 1 May 2018 08:31 CEST | Update | - |
| article html file updated | 26 March 2018 02:56 CEST | Original file | - |
| article xml uploaded. | 26 March 2018 02:54 CEST | Update | https://www.mdpi.com/1996-1073/11/4/724/xml |
| article pdf uploaded. | 26 March 2018 02:54 CEST | Updated version of record | https://www.mdpi.com/1996-1073/11/4/724/pdf |
| article pdf uploaded. | 22 March 2018 18:39 CET | Updated version of record | https://www.mdpi.com/1996-1073/11/4/724/pdf-vor |
| article pdf uploaded. | 22 March 2018 18:28 CET | Version of Record | https://www.mdpi.com/1996-1073/11/4/724/pdf-vor |