| article html file updated | 8 February 2020 16:49 CET | Update | https://www.mdpi.com/2411-5134/2/4/26 |
| article html file updated | 3 May 2019 00:47 CEST | Update | - |
| article html file updated | 21 September 2017 15:16 CEST | Original file | - |
| article xml uploaded. | 21 September 2017 15:15 CEST | Original file | https://www.mdpi.com/2411-5134/2/4/26/xml |
| article pdf uploaded. | 21 September 2017 15:15 CEST | Version of Record | https://www.mdpi.com/2411-5134/2/4/26/pdf |
