| article html file updated | 29 August 2025 20:27 CEST | Update | https://www.mdpi.com/2072-6643/4/9/1237 |
| article html file updated | 15 July 2022 21:56 CEST | Update | N/A |
| article html file updated | 5 February 2020 21:48 CET | Update | N/A |
| article html file updated | 8 May 2019 15:10 CEST | Update | N/A |
| article html file updated | 20 March 2019 12:02 CET | Update | N/A |
| article html file updated | 17 June 2015 02:02 CEST | Update | N/A |
| article html file updated | 7 February 2013 14:45 CET | Update | N/A |
| article html file updated | 7 February 2013 05:47 CET | Update | N/A |
| article html file updated | 6 February 2013 10:04 CET | Update | N/A |
| article html file updated | 29 January 2013 06:21 CET | Update | N/A |
| article html file updated | 24 January 2013 01:14 CET | Original file | N/A |
