| article html file updated | 8 February 2020 22:11 CET | Update | https://www.mdpi.com/2313-433X/3/4/54 |
| article html file updated | 28 September 2019 17:58 CEST | Update | - |
| article html file updated | 2 May 2019 12:47 CEST | Update | - |
| article html file updated | 18 April 2019 10:25 CEST | Update | - |
| article html file updated | 6 February 2018 10:41 CET | Update | - |
| article html file updated | 27 November 2017 03:31 CET | Original file | - |
| article xml uploaded. | 27 November 2017 03:29 CET | Update | https://www.mdpi.com/2313-433X/3/4/54/xml |
| article xml uploaded. | 27 November 2017 03:29 CET | Original file | - |
| article pdf uploaded. | 27 November 2017 03:29 CET | Updated version of record | https://www.mdpi.com/2313-433X/3/4/54/pdf |
| article pdf uploaded. | 24 November 2017 14:47 CET | Version of Record | https://www.mdpi.com/2313-433X/3/4/54/pdf-vor |
