| article html file updated | 30 August 2025 02:13 CEST | Update | https://www.mdpi.com/2313-433X/4/1/15 |
| article html file updated | 16 July 2022 08:28 CEST | Update | - |
| article html file updated | 9 February 2020 02:40 CET | Update | - |
| article html file updated | 29 September 2019 19:54 CEST | Update | - |
| article html file updated | 2 May 2019 03:02 CEST | Update | - |
| article html file updated | 18 April 2019 01:12 CEST | Update | - |
| article html file updated | 28 March 2019 14:40 CET | Update | - |
| article html file updated | 2 February 2018 09:15 CET | Update | - |
| article html file updated | 11 January 2018 16:51 CET | Original file | - |
| article xml uploaded. | 11 January 2018 16:50 CET | Update | https://www.mdpi.com/2313-433X/4/1/15/xml |
| article xml uploaded. | 11 January 2018 16:50 CET | Original file | - |
| article pdf uploaded. | 11 January 2018 16:50 CET | Version of Record | https://www.mdpi.com/2313-433X/4/1/15/pdf |