| article html file updated | 9 February 2020 13:30 CET | Update | https://www.mdpi.com/2571-6255/1/1/12 |
| article html file updated | 2 October 2019 12:54 CEST | Update | - |
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| article html file updated | 12 April 2018 10:01 CEST | Original file | - |
| article xml uploaded. | 12 April 2018 10:00 CEST | Original file | https://www.mdpi.com/2571-6255/1/1/12/xml |
| article pdf uploaded. | 12 April 2018 10:00 CEST | Version of Record | https://www.mdpi.com/2571-6255/1/1/12/pdf |
