| article html file updated | 29 August 2025 20:27 CEST | Update | https://www.mdpi.com/2076-0817/1/2/65 |
| article html file updated | 15 July 2022 21:58 CEST | Update | - |
| article html file updated | 5 February 2020 22:13 CET | Update | - |
| article html file updated | 8 May 2019 14:13 CEST | Update | - |
| article html file updated | 20 March 2019 13:08 CET | Update | - |
| article html file updated | 17 June 2015 02:43 CEST | Update | - |
| article html file updated | 26 August 2014 04:22 CEST | Update | - |
| article xml file uploaded | 26 August 2014 04:22 CEST | Original file | https://www.mdpi.com/2076-0817/1/2/65/xml |
| article html file updated | 7 February 2013 15:26 CET | Update | - |
| article html file updated | 24 January 2013 03:37 CET | Original file | - |
