| article html file updated | 24 January 2024 15:00 CET | Original file | https://www.mdpi.com/2504-3900/9/1/61 |
| article pdf uploaded. | 13 January 2020 05:20 CET | Updated version of record | https://www.mdpi.com/2504-3900/9/1/61/pdf |
| article xml file uploaded | 16 May 2019 10:02 CEST | Original file | https://www.mdpi.com/2504-3900/9/1/61/xml |
