| article html file updated | 30 August 2025 00:07 CEST | Update | https://www.mdpi.com/2072-6643/9/1/13 |
| article html file updated | 20 August 2025 22:26 CEST | Update | - |
| article html file updated | 16 July 2022 04:17 CEST | Update | - |
| article html file updated | 7 February 2020 20:21 CET | Update | - |
| article html file updated | 22 September 2019 15:29 CEST | Update | - |
| article html file updated | 4 May 2019 17:42 CEST | Update | - |
| article html file updated | 7 February 2017 12:17 CET | Update | - |
| article html file updated | 27 December 2016 12:17 CET | Original file | - |
| article xml uploaded. | 27 December 2016 11:39 CET | Original file | https://www.mdpi.com/2072-6643/9/1/13/xml |
| article pdf uploaded. | 27 December 2016 11:39 CET | Version of Record | https://www.mdpi.com/2072-6643/9/1/13/pdf |
