| article html file updated | 8 February 2020 21:11 CET | Update | https://www.mdpi.com/2073-8994/9/11/273 |
| article html file updated | 28 September 2019 11:29 CEST | Update | - |
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| article html file updated | 30 November 2017 08:26 CET | Update | - |
| article html file updated | 14 November 2017 13:18 CET | Original file | - |
| article xml uploaded. | 14 November 2017 13:17 CET | Original file | https://www.mdpi.com/2073-8994/9/11/273/xml |
| article pdf uploaded. | 14 November 2017 13:17 CET | Version of Record | https://www.mdpi.com/2073-8994/9/11/273/pdf |
