| article html file updated | 9 February 2020 03:02 CET | Update | https://www.mdpi.com/1424-8220/18/1/222 |
| article html file updated | 29 September 2019 21:50 CEST | Update | - |
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| article html file updated | 14 January 2018 09:45 CET | Original file | - |
| article xml uploaded. | 14 January 2018 09:44 CET | Original file | https://www.mdpi.com/1424-8220/18/1/222/xml |
| article pdf uploaded. | 14 January 2018 09:44 CET | Version of Record | https://www.mdpi.com/1424-8220/18/1/222/pdf |