| article html file updated | 10 February 2020 16:44 CET | Update | https://www.mdpi.com/2504-4494/2/4/73 |
| article html file updated | 9 October 2019 06:48 CEST | Update | - |
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| article html file updated | 19 October 2018 04:07 CEST | Original file | - |
| article pdf uploaded. | 19 October 2018 04:07 CEST | Version of Record | https://www.mdpi.com/2504-4494/2/4/73/pdf |
| article xml uploaded. | 19 October 2018 04:07 CEST | Update | https://www.mdpi.com/2504-4494/2/4/73/xml |
| article xml file uploaded | 19 October 2018 04:06 CEST | Original file | - |