| article html file updated | 30 August 2025 01:27 CEST | Update | https://www.mdpi.com/2073-4336/8/4/44 |
| article html file updated | 16 July 2022 06:52 CEST | Update | - |
| article html file updated | 8 February 2020 18:44 CET | Update | - |
| article html file updated | 27 September 2019 20:00 CEST | Update | - |
| article html file updated | 2 May 2019 20:39 CEST | Update | - |
| article html file updated | 19 October 2017 23:11 CEST | Update | - |
| article xml uploaded. | 19 October 2017 05:31 CEST | Update | https://www.mdpi.com/2073-4336/8/4/44/xml |
| article pdf uploaded. | 19 October 2017 05:31 CEST | Updated version of record | https://www.mdpi.com/2073-4336/8/4/44/pdf |
| article html file updated | 17 October 2017 14:54 CEST | Original file | - |
| article xml uploaded. | 17 October 2017 14:53 CEST | Original file | - |
| article pdf uploaded. | 17 October 2017 14:53 CEST | Version of Record | https://www.mdpi.com/2073-4336/8/4/44/pdf-vor |