| article html file updated | 9 February 2020 04:29 CET | Update | https://www.mdpi.com/1999-4923/10/1/20 |
| article html file updated | 30 September 2019 06:20 CEST | Update | - |
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| article xml uploaded. | 26 January 2018 16:03 CET | Original file | https://www.mdpi.com/1999-4923/10/1/20/xml |
| article pdf uploaded. | 26 January 2018 16:03 CET | Version of Record | https://www.mdpi.com/1999-4923/10/1/20/pdf |
