| article html file updated | 30 August 2025 04:48 CEST | Update | https://www.mdpi.com/2313-433X/4/7/87 |
| article html file updated | 16 July 2022 22:10 CEST | Update | N/A |
| article html file updated | 9 February 2020 22:52 CET | Update | N/A |
| article html file updated | 4 October 2019 23:03 CEST | Update | N/A |
| article html file updated | 30 April 2019 07:37 CEST | Update | N/A |
| article html file updated | 16 April 2019 02:41 CEST | Update | N/A |
| article html file updated | 30 March 2019 14:22 CET | Update | N/A |
| article html file updated | 1 August 2018 06:47 CEST | Update | N/A |
| article html file updated | 31 July 2018 12:04 CEST | Update | N/A |
| article html file updated | 30 July 2018 05:43 CEST | Update | N/A |
| article html file updated | 26 June 2018 09:12 CEST | Original file | N/A |
| article pdf uploaded. | 26 June 2018 09:11 CEST | Version of Record | https://www.mdpi.com/2313-433X/4/7/87/pdf |
| article xml uploaded. | 26 June 2018 09:11 CEST | Update | https://www.mdpi.com/2313-433X/4/7/87/xml |
| article xml file uploaded | 26 June 2018 09:11 CEST | Original file | N/A |
