| article html file updated | 30 August 2025 01:05 CEST | Update | https://www.mdpi.com/2073-4360/9/9/406 |
| article html file updated | 16 July 2022 06:07 CEST | Update | N/A |
| article html file updated | 8 February 2020 14:57 CET | Update | N/A |
| article html file updated | 26 September 2019 20:48 CEST | Update | N/A |
| article html file updated | 3 May 2019 04:16 CEST | Update | N/A |
| article html file updated | 30 September 2017 10:00 CEST | Update | N/A |
| article html file updated | 31 August 2017 11:31 CEST | Original file | N/A |
| article xml uploaded. | 31 August 2017 11:30 CEST | Update | https://www.mdpi.com/2073-4360/9/9/406/xml |
| article xml uploaded. | 31 August 2017 11:30 CEST | Original file | N/A |
| article pdf uploaded. | 31 August 2017 11:30 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/9/406/pdf |
