| article html file updated | 9 February 2020 16:35 CET | Update | https://www.mdpi.com/2313-433X/4/5/67 |
| article html file updated | 3 October 2019 07:34 CEST | Update | - |
| article html file updated | 30 April 2019 22:01 CEST | Update | - |
| article html file updated | 16 April 2019 22:30 CEST | Update | - |
| article html file updated | 29 March 2019 22:19 CET | Update | - |
| article html file updated | 30 May 2018 11:55 CEST | Update | - |
| article html file updated | 7 May 2018 05:34 CEST | Original file | - |
| article pdf uploaded. | 7 May 2018 05:08 CEST | Version of Record | https://www.mdpi.com/2313-433X/4/5/67/pdf |
| article xml uploaded. | 7 May 2018 05:08 CEST | Update | https://www.mdpi.com/2313-433X/4/5/67/xml |
| article xml file uploaded | 7 May 2018 05:08 CEST | Original file | - |
