| article html file updated | 24 January 2024 16:08 CET | Original file | https://www.mdpi.com/2504-3900/4/1/3 |
| article pdf uploaded. | 22 January 2019 07:07 CET | Version of Record | https://www.mdpi.com/2504-3900/4/1/3/pdf |
| article xml file uploaded | 22 January 2019 07:07 CET | Original file | https://www.mdpi.com/2504-3900/4/1/3/xml |
