| article html file updated | 8 February 2020 23:03 CET | Update | https://www.mdpi.com/2411-5134/2/4/34 |
| article html file updated | 28 September 2019 23:22 CEST | Update | - |
| article html file updated | 2 May 2019 10:49 CEST | Update | - |
| article html file updated | 18 April 2019 08:26 CEST | Update | - |
| article html file updated | 5 December 2017 14:33 CET | Original file | - |
| article xml uploaded. | 5 December 2017 14:31 CET | Original file | https://www.mdpi.com/2411-5134/2/4/34/xml |
| article pdf uploaded. | 5 December 2017 14:31 CET | Updated version of record | https://www.mdpi.com/2411-5134/2/4/34/pdf |
| article pdf uploaded. | 4 December 2017 12:54 CET | Updated version of record | https://www.mdpi.com/2411-5134/2/4/34/pdf-vor |
| article pdf uploaded. | 4 December 2017 12:53 CET | Version of Record | https://www.mdpi.com/2411-5134/2/4/34/pdf-vor |
