| article html file updated | 25 January 2024 11:20 CET | Original file | https://www.mdpi.com/2504-3900/31/1/69 |
| article pdf uploaded. | 21 November 2019 05:01 CET | Version of Record | https://www.mdpi.com/2504-3900/31/1/69/pdf |
| article xml file uploaded | 21 November 2019 05:01 CET | Original file | https://www.mdpi.com/2504-3900/31/1/69/xml |
