| article html file updated | 7 February 2020 22:11 CET | Update | https://www.mdpi.com/2079-4991/7/2/24 |
| article html file updated | 23 September 2019 01:18 CEST | Update | - |
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| article html file updated | 2 March 2017 08:58 CET | Update | - |
| article html file updated | 25 January 2017 08:45 CET | Original file | - |
| article xml uploaded. | 25 January 2017 08:44 CET | Original file | https://www.mdpi.com/2079-4991/7/2/24/xml |
| article pdf uploaded. | 25 January 2017 08:44 CET | Version of Record | https://www.mdpi.com/2079-4991/7/2/24/pdf |
