| article html file updated | 24 January 2024 16:39 CET | Original file | https://www.mdpi.com/2504-3900/14/1/21 |
| article pdf uploaded. | 19 June 2019 08:29 CEST | Version of Record | https://www.mdpi.com/2504-3900/14/1/21/pdf |
| article xml file uploaded | 19 June 2019 08:29 CEST | Original file | https://www.mdpi.com/2504-3900/14/1/21/xml |
