| article html file updated | 2 April 2020 12:02 CEST | Update | https://www.mdpi.com/2077-0375/10/3/52 |
| article html file updated | 24 March 2020 09:54 CET | Original file | - |
| article pdf uploaded. | 24 March 2020 09:53 CET | Version of Record | https://www.mdpi.com/2077-0375/10/3/52/pdf |
| article xml uploaded. | 24 March 2020 09:53 CET | Update | https://www.mdpi.com/2077-0375/10/3/52/xml |
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