| article html file updated | 9 February 2020 13:09 CET | Update | https://www.mdpi.com/1996-1073/11/4/878 |
| article html file updated | 2 October 2019 10:46 CEST | Update | - |
| article html file updated | 1 May 2019 04:49 CEST | Update | - |
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| article html file updated | 1 May 2018 09:16 CEST | Update | - |
| article html file updated | 13 April 2018 07:44 CEST | Update | - |
| article xml uploaded. | 13 April 2018 07:42 CEST | Update | https://www.mdpi.com/1996-1073/11/4/878/xml |
| article pdf uploaded. | 13 April 2018 07:42 CEST | Updated version of record | https://www.mdpi.com/1996-1073/11/4/878/pdf |
| article html file updated | 10 April 2018 08:21 CEST | Original file | - |
| article pdf uploaded. | 10 April 2018 08:19 CEST | Version of Record | https://www.mdpi.com/1996-1073/11/4/878/pdf-vor |