| article html file updated | 10 February 2020 01:09 CET | Update | https://www.mdpi.com/2313-433X/4/7/93 |
| article html file updated | 30 April 2019 02:44 CEST | Update | - |
| article html file updated | 15 April 2019 22:03 CEST | Update | - |
| article html file updated | 30 March 2019 19:55 CET | Update | - |
| article html file updated | 2 August 2018 08:50 CEST | Update | - |
| article html file updated | 30 July 2018 05:53 CEST | Update | - |
| article html file updated | 13 July 2018 05:37 CEST | Original file | - |
| article pdf uploaded. | 13 July 2018 05:35 CEST | Version of Record | https://www.mdpi.com/2313-433X/4/7/93/pdf |
| article xml uploaded. | 13 July 2018 05:35 CEST | Update | https://www.mdpi.com/2313-433X/4/7/93/xml |
| article xml file uploaded | 13 July 2018 05:35 CEST | Original file | - |
