| article html file updated | 9 February 2020 01:24 CET | Update | https://www.mdpi.com/2313-433X/4/1/7 |
| article html file updated | 2 May 2019 05:42 CEST | Update | N/A |
| article html file updated | 18 April 2019 03:43 CEST | Update | N/A |
| article html file updated | 28 March 2019 11:39 CET | Update | N/A |
| article html file updated | 2 February 2018 09:19 CET | Update | N/A |
| article html file updated | 2 January 2018 08:30 CET | Update | N/A |
| article xml uploaded. | 2 January 2018 08:29 CET | Update | https://www.mdpi.com/2313-433X/4/1/7/xml |
| article pdf uploaded. | 2 January 2018 08:28 CET | Updated version of record | https://www.mdpi.com/2313-433X/4/1/7/pdf |
| article html file updated | 28 December 2017 11:39 CET | Original file | N/A |
| article xml uploaded. | 28 December 2017 11:37 CET | Update | N/A |
| article xml uploaded. | 28 December 2017 11:37 CET | Update | N/A |
| article xml uploaded. | 28 December 2017 11:37 CET | Original file | N/A |
| article pdf uploaded. | 28 December 2017 11:37 CET | Version of Record | https://www.mdpi.com/2313-433X/4/1/7/pdf-vor |
