| article html file updated | 9 February 2020 15:57 CET | Update | https://www.mdpi.com/2218-2004/6/2/24 |
| article html file updated | 3 October 2019 03:34 CEST | Update | - |
| article html file updated | 30 April 2019 23:20 CEST | Update | - |
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| article html file updated | 27 June 2018 11:41 CEST | Update | - |
| article html file updated | 1 May 2018 15:05 CEST | Original file | - |
| article pdf uploaded. | 1 May 2018 11:32 CEST | Version of Record | https://www.mdpi.com/2218-2004/6/2/24/pdf |
| article xml uploaded. | 1 May 2018 11:32 CEST | Update | https://www.mdpi.com/2218-2004/6/2/24/xml |
| article xml file uploaded | 1 May 2018 11:32 CEST | Original file | - |
