| article html file updated | 30 August 2025 09:01 CEST | Update | https://www.mdpi.com/2305-7084/2/4/56 |
| article html file updated | 17 July 2022 10:10 CEST | Update | - |
| article html file updated | 10 February 2020 22:20 CET | Update | - |
| article html file updated | 10 October 2019 17:41 CEST | Update | - |
| article html file updated | 28 April 2019 05:47 CEST | Update | - |
| article html file updated | 14 April 2019 01:49 CEST | Update | - |
| article html file updated | 1 April 2019 23:45 CEST | Update | - |
| article html file updated | 20 November 2018 11:45 CET | Original file | - |
| article pdf uploaded. | 20 November 2018 11:44 CET | Version of Record | https://www.mdpi.com/2305-7084/2/4/56/pdf |
| article xml uploaded. | 20 November 2018 11:44 CET | Update | https://www.mdpi.com/2305-7084/2/4/56/xml |
| article xml file uploaded | 20 November 2018 11:44 CET | Original file | - |
