| article html file updated | 12 February 2020 18:32 CET | Update | https://www.mdpi.com/2571-6182/2/2/18 |
| article html file updated | 21 October 2019 14:19 CEST | Update | - |
| article html file updated | 27 June 2019 04:47 CEST | Original file | - |
| article pdf uploaded. | 26 June 2019 04:58 CEST | Updated version of record | https://www.mdpi.com/2571-6182/2/2/18/pdf |
| article xml uploaded. | 26 June 2019 04:58 CEST | Update | https://www.mdpi.com/2571-6182/2/2/18/xml |
| article xml file uploaded | 26 June 2019 04:58 CEST | Update | - |
| article pdf uploaded. | 8 June 2019 17:32 CEST | Version of Record | https://www.mdpi.com/2571-6182/2/2/18/pdf-vor |
| article xml file uploaded | 8 June 2019 17:32 CEST | Original file | - |
