| article html file updated | 6 February 2020 04:12 CET | Update | https://www.mdpi.com/1422-0067/14/9/18181 |
| article html file updated | 8 May 2019 00:50 CEST | Update | - |
| article html file updated | 21 March 2019 04:08 CET | Update | - |
| article html file updated | 17 June 2015 12:55 CEST | Update | - |
| article html file updated | 31 October 2013 10:11 CET | Update | - |
| article xml file uploaded | 31 October 2013 10:10 CET | Update | https://www.mdpi.com/1422-0067/14/9/18181/xml |
| article html file updated | 14 October 2013 12:43 CEST | Original file | - |
| article xml file uploaded | 14 October 2013 12:42 CEST | Original file | - |
| article pdf uploaded. | 5 September 2013 09:05 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/9/18181/pdf |
