| article html file updated | 24 January 2024 16:57 CET | Original file | https://www.mdpi.com/2504-3900/21/1/28 |
| article pdf uploaded. | 1 August 2019 04:25 CEST | Version of Record | https://www.mdpi.com/2504-3900/21/1/28/pdf |
| article xml file uploaded | 1 August 2019 04:25 CEST | Original file | https://www.mdpi.com/2504-3900/21/1/28/xml |
