| article html file updated | 29 August 2025 23:00 CEST | Update | https://www.mdpi.com/2073-4360/8/4/161 |
| article html file updated | 16 July 2022 02:14 CEST | Update | - |
| article html file updated | 7 February 2020 07:40 CET | Update | - |
| article html file updated | 21 September 2019 15:45 CEST | Update | - |
| article html file updated | 5 May 2019 17:50 CEST | Update | - |
| article html file updated | 27 March 2019 02:42 CET | Update | - |
| article html file updated | 15 March 2019 12:11 CET | Update | - |
| article html file updated | 29 April 2016 10:04 CEST | Update | - |
| article html file updated | 22 April 2016 10:38 CEST | Original file | - |
| article xml uploaded. | 22 April 2016 10:37 CEST | Original file | https://www.mdpi.com/2073-4360/8/4/161/xml |
| article pdf uploaded. | 22 April 2016 10:37 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/4/161/pdf |
