| article html file updated | 14 September 2021 09:41 CEST | Update | https://www.mdpi.com/2409-515X/4/1/2 |
| article html file updated | 14 September 2021 09:41 CEST | Update | - |
| article xml uploaded. | 14 September 2021 09:40 CEST | Update | https://www.mdpi.com/2409-515X/4/1/2/xml |
| article html file updated | 29 December 2017 09:36 CET | Original file | - |
| article xml uploaded. | 29 December 2017 09:35 CET | Original file | - |
| article pdf uploaded. | 29 December 2017 09:35 CET | Version of Record | https://www.mdpi.com/2409-515X/4/1/2/pdf |
