| article html file updated | 30 August 2025 01:59 CEST | Update | https://www.mdpi.com/2072-6694/9/12/171 |
| article html file updated | 16 July 2022 07:59 CEST | Update | - |
| article html file updated | 9 February 2020 00:17 CET | Update | - |
| article html file updated | 29 September 2019 06:26 CEST | Update | - |
| article html file updated | 2 May 2019 08:07 CEST | Update | - |
| article html file updated | 18 April 2019 05:56 CEST | Update | - |
| article html file updated | 2 January 2018 18:03 CET | Update | - |
| article html file updated | 16 December 2017 08:53 CET | Original file | - |
| article xml uploaded. | 16 December 2017 08:51 CET | Original file | https://www.mdpi.com/2072-6694/9/12/171/xml |
| article pdf uploaded. | 16 December 2017 08:51 CET | Version of Record | https://www.mdpi.com/2072-6694/9/12/171/pdf |
