| article html file updated | 9 February 2020 19:45 CET | Update | https://www.mdpi.com/2313-433X/4/6/74 |
| article html file updated | 4 October 2019 03:30 CEST | Update | - |
| article html file updated | 30 April 2019 15:00 CEST | Update | - |
| article html file updated | 16 April 2019 15:34 CEST | Update | - |
| article html file updated | 30 March 2019 06:21 CET | Update | - |
| article html file updated | 26 June 2018 05:11 CEST | Update | - |
| article html file updated | 2 June 2018 16:02 CEST | Original file | - |
| article xml uploaded. | 2 June 2018 15:59 CEST | Update | https://www.mdpi.com/2313-433X/4/6/74/xml |
| article pdf uploaded. | 2 June 2018 15:59 CEST | Updated version of record | https://www.mdpi.com/2313-433X/4/6/74/pdf |
| article pdf uploaded. | 31 May 2018 16:30 CEST | Updated version of record | - |
| article xml file uploaded | 31 May 2018 16:24 CEST | Original file | - |
