| article html file updated | 29 August 2025 23:50 CEST | Update | https://www.mdpi.com/1996-1073/9/11/911 |
| article html file updated | 16 July 2022 03:46 CEST | Update | - |
| article html file updated | 7 February 2020 17:28 CET | Update | - |
| article html file updated | 4 May 2019 23:34 CEST | Update | - |
| article html file updated | 30 November 2016 05:49 CET | Update | - |
| article html file updated | 3 November 2016 11:54 CET | Original file | - |
| article xml uploaded. | 3 November 2016 11:52 CET | Update | https://www.mdpi.com/1996-1073/9/11/911/xml |
| article xml uploaded. | 3 November 2016 11:52 CET | Original file | - |
| article pdf uploaded. | 3 November 2016 11:52 CET | Version of Record | https://www.mdpi.com/1996-1073/9/11/911/pdf |
