| article html file updated | 8 February 2020 21:26 CET | Update | https://www.mdpi.com/1999-4907/8/11/447 |
| article html file updated | 28 September 2019 13:08 CEST | Update | - |
| article html file updated | 2 May 2019 14:27 CEST | Update | - |
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| article html file updated | 30 November 2017 16:07 CET | Update | - |
| article html file updated | 17 November 2017 09:55 CET | Original file | - |
| article xml uploaded. | 17 November 2017 09:54 CET | Original file | https://www.mdpi.com/1999-4907/8/11/447/xml |
| article pdf uploaded. | 17 November 2017 09:54 CET | Version of Record | https://www.mdpi.com/1999-4907/8/11/447/pdf |
