| article html file updated | 29 August 2025 22:55 CEST | Update | https://www.mdpi.com/2073-4360/8/4/120 |
| article html file updated | 20 August 2025 22:17 CEST | Update | - |
| article html file updated | 7 February 2020 06:47 CET | Update | - |
| article html file updated | 21 September 2019 14:26 CEST | Update | - |
| article html file updated | 5 May 2019 19:40 CEST | Update | - |
| article html file updated | 27 March 2019 00:57 CET | Update | - |
| article html file updated | 15 March 2019 11:55 CET | Update | - |
| article html file updated | 29 April 2016 09:47 CEST | Update | - |
| article html file updated | 2 April 2016 06:13 CEST | Original file | - |
| article xml uploaded. | 2 April 2016 06:12 CEST | Original file | https://www.mdpi.com/2073-4360/8/4/120/xml |
| article pdf uploaded. | 2 April 2016 06:12 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/4/120/pdf |