| article html file updated | 30 August 2025 01:55 CEST | Update | https://www.mdpi.com/2073-4360/9/12/684 |
| article html file updated | 16 July 2022 07:50 CEST | Update | - |
| article html file updated | 8 February 2020 23:26 CET | Update | - |
| article html file updated | 29 September 2019 01:31 CEST | Update | - |
| article html file updated | 2 May 2019 09:59 CEST | Update | - |
| article html file updated | 18 April 2019 07:38 CEST | Update | - |
| article html file updated | 2 January 2018 14:41 CET | Update | - |
| article html file updated | 7 December 2017 14:29 CET | Original file | - |
| article xml uploaded. | 7 December 2017 14:28 CET | Original file | https://www.mdpi.com/2073-4360/9/12/684/xml |
| article pdf uploaded. | 7 December 2017 14:28 CET | Version of Record | https://www.mdpi.com/2073-4360/9/12/684/pdf |
