| article html file updated | 8 February 2020 14:22 CET | Update | https://www.mdpi.com/2411-5134/2/3/20 |
| article html file updated | 3 May 2019 05:22 CEST | Update | - |
| article html file updated | 8 September 2017 12:07 CEST | Update | - |
| article xml uploaded. | 8 September 2017 12:06 CEST | Update | https://www.mdpi.com/2411-5134/2/3/20/xml |
| article pdf uploaded. | 8 September 2017 12:06 CEST | Updated version of record | https://www.mdpi.com/2411-5134/2/3/20/pdf |
| article html file updated | 24 August 2017 13:06 CEST | Original file | - |
| article xml uploaded. | 24 August 2017 13:05 CEST | Original file | - |
| article pdf uploaded. | 24 August 2017 13:05 CEST | Version of Record | https://www.mdpi.com/2411-5134/2/3/20/pdf-vor |
