| article html file updated | 9 February 2020 14:02 CET | Update | https://www.mdpi.com/1424-8220/18/4/1221 |
| article html file updated | 2 October 2019 16:11 CEST | Update | - |
| article html file updated | 1 May 2019 03:04 CEST | Update | - |
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| article html file updated | 7 May 2018 05:12 CEST | Update | - |
| article html file updated | 18 April 2018 14:54 CEST | Original file | - |
| article pdf uploaded. | 18 April 2018 14:52 CEST | Updated version of record | https://www.mdpi.com/1424-8220/18/4/1221/pdf |
| article xml uploaded. | 18 April 2018 14:52 CEST | Update | https://www.mdpi.com/1424-8220/18/4/1221/xml |
| article xml file uploaded | 18 April 2018 14:52 CEST | Original file | - |
