| article html file updated | 8 February 2020 16:50 CET | Update | https://www.mdpi.com/2313-433X/3/4/40 |
| article html file updated | 27 September 2019 07:06 CEST | Update | - |
| article html file updated | 3 May 2019 00:45 CEST | Update | - |
| article html file updated | 6 February 2018 10:44 CET | Update | - |
| article html file updated | 24 October 2017 08:16 CEST | Update | - |
| article xml uploaded. | 24 October 2017 08:14 CEST | Update | https://www.mdpi.com/2313-433X/3/4/40/xml |
| article xml uploaded. | 24 October 2017 08:14 CEST | Update | - |
| article pdf uploaded. | 24 October 2017 08:14 CEST | Updated version of record | https://www.mdpi.com/2313-433X/3/4/40/pdf |
| article html file updated | 29 September 2017 08:52 CEST | Update | - |
| article xml uploaded. | 29 September 2017 08:50 CEST | Update | - |
| article xml uploaded. | 29 September 2017 08:50 CEST | Update | - |
| article pdf uploaded. | 29 September 2017 08:50 CEST | Updated version of record | https://www.mdpi.com/2313-433X/3/4/40/pdf-vor |
| article html file updated | 25 September 2017 12:10 CEST | Original file | - |
| article xml uploaded. | 25 September 2017 12:08 CEST | Update | - |
| article xml uploaded. | 25 September 2017 12:08 CEST | Original file | - |
| article pdf uploaded. | 25 September 2017 12:08 CEST | Updated version of record | https://www.mdpi.com/2313-433X/3/4/40/pdf-vor |
| article pdf uploaded. | 21 September 2017 15:11 CEST | Version of Record | https://www.mdpi.com/2313-433X/3/4/40/pdf-vor |
