| article html file updated | 9 February 2020 00:12 CET | Update | https://www.mdpi.com/2313-433X/3/4/67 |
| article html file updated | 29 September 2019 05:58 CEST | Update | N/A |
| article html file updated | 2 May 2019 08:18 CEST | Update | N/A |
| article html file updated | 18 April 2019 06:05 CEST | Update | N/A |
| article html file updated | 6 February 2018 10:43 CET | Update | N/A |
| article html file updated | 19 December 2017 03:54 CET | Update | N/A |
| article xml uploaded. | 19 December 2017 03:53 CET | Update | https://www.mdpi.com/2313-433X/3/4/67/xml |
| article pdf uploaded. | 19 December 2017 03:53 CET | Updated version of record | https://www.mdpi.com/2313-433X/3/4/67/pdf |
| article html file updated | 15 December 2017 16:54 CET | Original file | N/A |
| article xml uploaded. | 15 December 2017 16:52 CET | Update | N/A |
| article xml uploaded. | 15 December 2017 16:52 CET | Original file | N/A |
| article pdf uploaded. | 15 December 2017 16:52 CET | Updated version of record | https://www.mdpi.com/2313-433X/3/4/67/pdf-vor |
| article pdf uploaded. | 15 December 2017 12:44 CET | Version of Record | https://www.mdpi.com/2313-433X/3/4/67/pdf-vor |
