| article html file updated | 8 February 2020 03:40 CET | Update | https://www.mdpi.com/2313-433X/3/2/14 |
| article html file updated | 24 September 2019 08:12 CEST | Update | - |
| article html file updated | 4 May 2019 02:05 CEST | Update | - |
| article html file updated | 17 April 2017 13:50 CEST | Original file | - |
| article xml uploaded. | 17 April 2017 13:48 CEST | Original file | https://www.mdpi.com/2313-433X/3/2/14/xml |
| article pdf uploaded. | 17 April 2017 13:48 CEST | Updated version of record | https://www.mdpi.com/2313-433X/3/2/14/pdf |
| article pdf uploaded. | 15 April 2017 07:39 CEST | Version of Record | https://www.mdpi.com/2313-433X/3/2/14/pdf-vor |
