| article html file updated | 7 February 2020 19:40 CET | Update | https://www.mdpi.com/2411-5142/1/4/396 |
| article html file updated | 22 September 2019 11:49 CEST | Update | - |
| article html file updated | 4 May 2019 19:05 CEST | Update | - |
| article html file updated | 15 December 2016 14:45 CET | Original file | - |
| article xml uploaded. | 15 December 2016 14:43 CET | Original file | https://www.mdpi.com/2411-5142/1/4/396/xml |
| article pdf uploaded. | 15 December 2016 14:43 CET | Version of Record | https://www.mdpi.com/2411-5142/1/4/396/pdf |
