| article html file updated | 29 August 2025 20:33 CEST | Update | https://www.mdpi.com/2073-4468/2/1/66 |
| article html file updated | 15 July 2022 22:08 CEST | Update | - |
| article html file updated | 6 February 2020 00:13 CET | Update | - |
| article html file updated | 8 May 2019 09:18 CEST | Update | - |
| article html file updated | 20 March 2019 17:46 CET | Update | - |
| article html file updated | 17 June 2015 05:48 CEST | Update | - |
| article html file updated | 24 November 2014 10:50 CET | Original file | - |
| article xml file uploaded | 24 November 2014 10:50 CET | Original file | https://www.mdpi.com/2073-4468/2/1/66/xml |
| article pdf uploaded. | 25 January 2013 10:34 CET | Version of Record | https://www.mdpi.com/2073-4468/2/1/66/pdf |
