| article html file updated | 24 January 2024 16:17 CET | Original file | https://www.mdpi.com/2504-3900/7/1/9 |
| article pdf uploaded. | 12 June 2019 03:30 CEST | Updated version of record | https://www.mdpi.com/2504-3900/7/1/9/pdf |
| article pdf uploaded. | 5 March 2019 05:16 CET | Version of Record | https://www.mdpi.com/2504-3900/7/1/9/pdf-vor |
| article xml file uploaded | 5 March 2019 05:16 CET | Original file | https://www.mdpi.com/2504-3900/7/1/9/xml |
