| article html file updated | 9 February 2020 09:27 CET | Update | https://www.mdpi.com/1996-1073/11/3/623 |
| article html file updated | 1 October 2019 12:19 CEST | Update | - |
| article html file updated | 1 May 2019 12:35 CEST | Update | - |
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| article html file updated | 27 March 2018 06:29 CEST | Update | - |
| article xml uploaded. | 27 March 2018 06:28 CEST | Update | https://www.mdpi.com/1996-1073/11/3/623/xml |
| article html file updated | 13 March 2018 09:54 CET | Update | - |
| article pdf uploaded. | 13 March 2018 09:52 CET | Updated version of record | https://www.mdpi.com/1996-1073/11/3/623/pdf |
| article html file updated | 11 March 2018 10:52 CET | Original file | - |
| article pdf uploaded. | 11 March 2018 10:50 CET | Version of Record | https://www.mdpi.com/1996-1073/11/3/623/pdf-vor |