| article html file updated | 11 February 2020 04:17 CET | Update | https://www.mdpi.com/1660-4601/16/1/4 |
| article html file updated | 12 October 2019 05:48 CEST | Update | - |
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| article html file updated | 20 December 2018 10:22 CET | Original file | - |
| article pdf uploaded. | 20 December 2018 10:21 CET | Version of Record | https://www.mdpi.com/1660-4601/16/1/4/pdf |
| article xml uploaded. | 20 December 2018 10:21 CET | Update | https://www.mdpi.com/1660-4601/16/1/4/xml |
| article xml file uploaded | 20 December 2018 10:21 CET | Original file | - |
