| article html file updated | 9 February 2020 00:07 CET | Update | https://www.mdpi.com/2313-433X/3/4/66 |
| article html file updated | 29 September 2019 05:27 CEST | Update | - |
| article html file updated | 2 May 2019 08:29 CEST | Update | - |
| article html file updated | 18 April 2019 06:15 CEST | Update | - |
| article html file updated | 6 February 2018 10:43 CET | Update | - |
| article html file updated | 16 December 2017 02:58 CET | Update | - |
| article xml uploaded. | 16 December 2017 02:57 CET | Update | https://www.mdpi.com/2313-433X/3/4/66/xml |
| article xml uploaded. | 16 December 2017 02:57 CET | Update | - |
| article pdf uploaded. | 16 December 2017 02:57 CET | Updated version of record | https://www.mdpi.com/2313-433X/3/4/66/pdf |
| article html file updated | 14 December 2017 16:20 CET | Original file | - |
| article xml uploaded. | 14 December 2017 16:19 CET | Original file | - |
| article pdf uploaded. | 14 December 2017 16:19 CET | Version of Record | https://www.mdpi.com/2313-433X/3/4/66/pdf-vor |
