| article html file updated | 14 September 2021 10:15 CEST | Update | https://www.mdpi.com/2409-515X/4/1/5 |
| article xml uploaded. | 14 September 2021 10:14 CEST | Update | https://www.mdpi.com/2409-515X/4/1/5/xml |
| article html file updated | 16 January 2018 17:12 CET | Original file | N/A |
| article xml uploaded. | 16 January 2018 17:11 CET | Original file | N/A |
| article pdf uploaded. | 16 January 2018 17:11 CET | Version of Record | https://www.mdpi.com/2409-515X/4/1/5/pdf |
