| article html file updated | 29 August 2025 20:22 CEST | Update | https://www.mdpi.com/1660-3397/10/4/677 |
| article html file updated | 15 July 2022 21:49 CEST | Update | - |
| article html file updated | 5 February 2020 19:53 CET | Update | - |
| article html file updated | 8 May 2019 19:25 CEST | Update | - |
| article html file updated | 25 March 2019 10:10 CET | Update | - |
| article html file updated | 16 June 2015 22:40 CEST | Update | - |
| article html file updated | 7 February 2013 11:17 CET | Update | - |
| article html file updated | 7 February 2013 01:20 CET | Update | - |
| article html file updated | 6 February 2013 06:46 CET | Update | - |
| article html file updated | 29 January 2013 02:25 CET | Update | - |
| article html file updated | 26 January 2013 09:08 CET | Update | - |
| article html file updated | 23 January 2013 13:24 CET | Original file | - |