| article html file updated | 9 February 2020 04:46 CET | Update | https://www.mdpi.com/2079-4991/8/2/73 |
| article html file updated | 30 September 2019 08:03 CEST | Update | - |
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| article html file updated | 29 January 2018 18:06 CET | Original file | - |
| article xml uploaded. | 29 January 2018 18:05 CET | Original file | https://www.mdpi.com/2079-4991/8/2/73/xml |
| article pdf uploaded. | 29 January 2018 18:05 CET | Version of Record | https://www.mdpi.com/2079-4991/8/2/73/pdf |
