| article html file updated | 8 February 2020 22:39 CET | Update | https://www.mdpi.com/2313-433X/3/4/56 |
| article html file updated | 28 September 2019 20:49 CEST | Update | - |
| article html file updated | 2 May 2019 11:43 CEST | Update | - |
| article html file updated | 18 April 2019 09:20 CEST | Update | - |
| article html file updated | 6 February 2018 10:41 CET | Update | - |
| article html file updated | 13 December 2017 10:51 CET | Update | - |
| article xml uploaded. | 13 December 2017 10:50 CET | Update | https://www.mdpi.com/2313-433X/3/4/56/xml |
| article xml uploaded. | 13 December 2017 10:50 CET | Update | - |
| article pdf uploaded. | 13 December 2017 10:50 CET | Updated version of record | https://www.mdpi.com/2313-433X/3/4/56/pdf |
| article html file updated | 30 November 2017 17:24 CET | Original file | - |
| article xml uploaded. | 30 November 2017 16:16 CET | Update | - |
| article xml uploaded. | 30 November 2017 16:16 CET | Original file | - |
| article pdf uploaded. | 30 November 2017 16:16 CET | Updated version of record | https://www.mdpi.com/2313-433X/3/4/56/pdf-vor |
| article pdf uploaded. | 30 November 2017 11:52 CET | Version of Record | https://www.mdpi.com/2313-433X/3/4/56/pdf-vor |
