| article html file updated | 29 August 2025 23:11 CEST | Update | https://www.mdpi.com/1996-1944/9/6/447 |
| article html file updated | 16 July 2022 02:33 CEST | Update | - |
| article html file updated | 7 February 2020 09:43 CET | Update | - |
| article html file updated | 5 May 2019 13:47 CEST | Update | - |
| article html file updated | 27 March 2019 06:37 CET | Update | - |
| article html file updated | 28 June 2016 12:18 CEST | Update | - |
| article html file updated | 3 June 2016 13:57 CEST | Original file | - |
| article xml uploaded. | 3 June 2016 13:55 CEST | Original file | https://www.mdpi.com/1996-1944/9/6/447/xml |
| article pdf uploaded. | 3 June 2016 13:55 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/6/447/pdf |
