| article html file updated | 29 August 2025 21:27 CEST | Update | https://www.mdpi.com/2073-4441/7/1/271 |
| article html file updated | 15 July 2022 23:45 CEST | Update | - |
| article html file updated | 6 February 2020 15:07 CET | Update | - |
| article html file updated | 7 May 2019 02:37 CEST | Update | - |
| article html file updated | 25 March 2019 20:23 CET | Update | - |
| article html file updated | 21 August 2015 05:37 CEST | Update | - |
| article html file updated | 28 January 2015 07:44 CET | Original file | - |
| article xml file uploaded | 28 January 2015 07:44 CET | Original file | https://www.mdpi.com/2073-4441/7/1/271/xml |
| article pdf uploaded. | 12 January 2015 14:07 CET | Version of Record | https://www.mdpi.com/2073-4441/7/1/271/pdf |