| article html file updated | 30 August 2025 01:34 CEST | Update | https://www.mdpi.com/2218-273X/7/4/75 |
| article html file updated | 21 August 2025 19:25 CEST | Update | - |
| article html file updated | 16 July 2022 07:07 CEST | Update | - |
| article html file updated | 8 February 2020 19:58 CET | Update | - |
| article html file updated | 28 September 2019 03:30 CEST | Update | - |
| article html file updated | 2 May 2019 17:48 CEST | Update | - |
| article html file updated | 14 March 2018 17:48 CET | Update | - |
| article html file updated | 3 January 2018 09:03 CET | Update | - |
| article html file updated | 31 October 2017 14:10 CET | Original file | - |
| article xml uploaded. | 31 October 2017 14:08 CET | Update | https://www.mdpi.com/2218-273X/7/4/75/xml |
| article xml uploaded. | 31 October 2017 14:08 CET | Original file | - |
| article pdf uploaded. | 31 October 2017 13:27 CET | Version of Record | https://www.mdpi.com/2218-273X/7/4/75/pdf |
