| article html file updated | 5 February 2020 11:14 CET | Update | https://www.mdpi.com/1422-0067/9/10/2027 |
| article html file updated | 9 May 2019 13:28 CEST | Update | - |
| article html file updated | 19 March 2019 16:31 CET | Update | - |
| article html file updated | 16 June 2015 05:01 CEST | Update | - |
| article html file updated | 9 March 2015 06:40 CET | Update | - |
| article xml file uploaded | 9 March 2015 06:40 CET | Original file | https://www.mdpi.com/1422-0067/9/10/2027/xml |
| article html file updated | 6 February 2013 14:11 CET | Update | - |
| article html file updated | 5 February 2013 17:59 CET | Update | - |
| article html file updated | 28 January 2013 16:02 CET | Update | - |
| article html file updated | 25 January 2013 17:39 CET | Update | - |
| article html file updated | 21 January 2013 10:32 CET | Update | - |
| article html file updated | 18 January 2013 19:55 CET | Update | - |
| article html file updated | 17 January 2013 18:28 CET | Original file | - |
