| article html file updated | 6 February 2020 04:13 CET | Update | https://www.mdpi.com/1422-0067/14/9/18407 |
| article html file updated | 8 May 2019 00:47 CEST | Update | - |
| article html file updated | 21 March 2019 04:12 CET | Update | - |
| article html file updated | 17 June 2015 12:59 CEST | Update | - |
| article html file updated | 31 October 2013 10:13 CET | Update | - |
| article xml file uploaded | 31 October 2013 10:13 CET | Update | https://www.mdpi.com/1422-0067/14/9/18407/xml |
| article html file updated | 14 October 2013 12:48 CEST | Original file | - |
| article xml file uploaded | 14 October 2013 12:47 CEST | Original file | - |
| article pdf uploaded. | 6 September 2013 11:10 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/9/18407/pdf |
