| article html file updated | 29 August 2025 20:55 CEST | Update | https://www.mdpi.com/2072-6651/6/1/337 |
| article html file updated | 15 July 2022 22:49 CEST | Update | - |
| article html file updated | 6 February 2020 06:44 CET | Update | - |
| article html file updated | 7 May 2019 19:47 CEST | Update | - |
| article html file updated | 21 March 2019 11:02 CET | Update | - |
| article html file updated | 19 August 2015 17:24 CEST | Update | - |
| article html file updated | 17 February 2014 12:42 CET | Original file | - |
| article xml file uploaded | 17 February 2014 12:41 CET | Original file | https://www.mdpi.com/2072-6651/6/1/337/xml |
| article pdf uploaded. | 15 January 2014 09:19 CET | Version of Record | https://www.mdpi.com/2072-6651/6/1/337/pdf |