| article html file updated | 9 February 2020 02:46 CET | Update | https://www.mdpi.com/2313-433X/4/1/18 |
| article html file updated | 2 May 2019 02:50 CEST | Update | N/A |
| article html file updated | 18 April 2019 01:02 CEST | Update | N/A |
| article html file updated | 28 March 2019 14:53 CET | Update | N/A |
| article html file updated | 2 February 2018 09:15 CET | Update | N/A |
| article html file updated | 12 January 2018 10:01 CET | Original file | N/A |
| article xml uploaded. | 12 January 2018 10:00 CET | Original file | https://www.mdpi.com/2313-433X/4/1/18/xml |
| article pdf uploaded. | 12 January 2018 10:00 CET | Updated version of record | https://www.mdpi.com/2313-433X/4/1/18/pdf |
| article pdf uploaded. | 11 January 2018 18:15 CET | Version of Record | https://www.mdpi.com/2313-433X/4/1/18/pdf-vor |
