| article html file updated | 30 August 2025 00:06 CEST | Update | https://www.mdpi.com/2072-6643/9/1/7 |
| article html file updated | 16 July 2022 04:15 CEST | Update | - |
| article html file updated | 7 February 2020 20:12 CET | Update | - |
| article html file updated | 22 September 2019 14:37 CEST | Update | - |
| article html file updated | 4 May 2019 18:01 CEST | Update | - |
| article html file updated | 7 February 2017 12:16 CET | Update | - |
| article html file updated | 23 December 2016 12:12 CET | Original file | - |
| article xml uploaded. | 23 December 2016 12:11 CET | Original file | https://www.mdpi.com/2072-6643/9/1/7/xml |
| article pdf uploaded. | 23 December 2016 12:11 CET | Version of Record | https://www.mdpi.com/2072-6643/9/1/7/pdf |
