| article html file updated | 6 February 2020 05:07 CET | Update | https://www.mdpi.com/1422-0067/14/11/21215 |
| article html file updated | 7 May 2019 22:54 CEST | Update | - |
| article html file updated | 21 March 2019 06:33 CET | Update | - |
| article html file updated | 17 June 2015 14:13 CEST | Update | - |
| article html file updated | 9 December 2013 08:29 CET | Original file | - |
| article xml file uploaded | 9 December 2013 08:29 CET | Original file | https://www.mdpi.com/1422-0067/14/11/21215/xml |
| article pdf uploaded. | 24 October 2013 12:21 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/11/21215/pdf |
