| article html file updated | 11 February 2020 13:04 CET | Update | https://www.mdpi.com/1996-1073/12/3/468 |
| article html file updated | 14 October 2019 07:36 CEST | Update | - |
| article html file updated | 26 April 2019 22:26 CEST | Update | - |
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| article html file updated | 20 February 2019 04:36 CET | Update | - |
| article html file updated | 1 February 2019 11:08 CET | Original file | - |
| article pdf uploaded. | 1 February 2019 11:07 CET | Version of Record | https://www.mdpi.com/1996-1073/12/3/468/pdf |
| article xml uploaded. | 1 February 2019 11:07 CET | Update | https://www.mdpi.com/1996-1073/12/3/468/xml |
| article xml file uploaded | 1 February 2019 11:06 CET | Original file | - |
