| article html file updated | 9 February 2020 00:14 CET | Update | https://www.mdpi.com/1996-1073/10/12/2136 |
| article html file updated | 29 September 2019 06:12 CEST | Update | N/A |
| article html file updated | 2 May 2019 08:13 CEST | Update | N/A |
| article html file updated | 18 April 2019 06:01 CEST | Update | N/A |
| article html file updated | 2 January 2018 20:05 CET | Update | N/A |
| article html file updated | 15 December 2017 15:30 CET | Original file | N/A |
| article xml uploaded. | 15 December 2017 15:29 CET | Update | https://www.mdpi.com/1996-1073/10/12/2136/xml |
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| article pdf uploaded. | 15 December 2017 15:29 CET | Version of Record | https://www.mdpi.com/1996-1073/10/12/2136/pdf |