| article html file updated | 7 February 2020 20:20 CET | Update | https://www.mdpi.com/1424-8220/17/1/40 |
| article html file updated | 22 September 2019 15:25 CEST | Update | - |
| article html file updated | 4 May 2019 17:44 CEST | Update | - |
| article html file updated | 8 February 2017 08:54 CET | Update | - |
| article html file updated | 28 December 2016 16:33 CET | Original file | - |
| article xml uploaded. | 28 December 2016 16:32 CET | Update | https://www.mdpi.com/1424-8220/17/1/40/xml |
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| article pdf uploaded. | 28 December 2016 16:32 CET | Version of Record | https://www.mdpi.com/1424-8220/17/1/40/pdf |
