| article html file updated | 26 September 2022 14:55 CEST | Original file | https://www.mdpi.com/2504-3900/47/1/4 |
| article pdf uploaded. | 13 July 2020 10:51 CEST | Updated version of record | https://www.mdpi.com/2504-3900/47/1/4/pdf |
| article pdf uploaded. | 21 June 2020 14:24 CEST | Updated version of record | - |
| article xml file uploaded | 13 May 2020 06:24 CEST | Original file | https://www.mdpi.com/2504-3900/47/1/4/xml |
