| article html file updated | 14 September 2021 10:30 CEST | Update | https://www.mdpi.com/2409-515X/4/1/9 |
| article xml uploaded. | 14 September 2021 10:28 CEST | Update | https://www.mdpi.com/2409-515X/4/1/9/xml |
| article html file updated | 13 February 2018 19:52 CET | Original file | - |
| article xml uploaded. | 13 February 2018 19:50 CET | Update | - |
| article xml uploaded. | 13 February 2018 19:50 CET | Original file | - |
| article pdf uploaded. | 13 February 2018 19:50 CET | Version of Record | https://www.mdpi.com/2409-515X/4/1/9/pdf |
