| article html file updated | 29 August 2025 22:29 CEST | Update | https://www.mdpi.com/2218-1989/5/4/766 |
| article html file updated | 16 July 2022 01:27 CEST | Update | - |
| article html file updated | 7 February 2020 02:20 CET | Update | - |
| article html file updated | 6 May 2019 04:47 CEST | Update | - |
| article html file updated | 26 March 2019 16:38 CET | Update | - |
| article html file updated | 28 December 2015 09:52 CET | Original file | - |
| article xml file uploaded | 28 December 2015 09:52 CET | Update | https://www.mdpi.com/2218-1989/5/4/766/xml |
| article pdf uploaded. | 18 December 2015 09:19 CET | Version of Record | https://www.mdpi.com/2218-1989/5/4/766/pdf |
| article xml uploaded. | 18 December 2015 09:19 CET | Original file | - |
