| article html file updated | 24 January 2024 16:45 CET | Original file | https://www.mdpi.com/2504-3900/15/1/31 |
| article pdf uploaded. | 25 July 2019 11:20 CEST | Version of Record | https://www.mdpi.com/2504-3900/15/1/31/pdf |
| article xml file uploaded | 25 July 2019 11:20 CEST | Original file | https://www.mdpi.com/2504-3900/15/1/31/xml |
