| article html file updated | 6 February 2020 05:09 CET | Update | https://www.mdpi.com/1422-0067/14/11/21319 |
| article html file updated | 7 May 2019 22:51 CEST | Update | - |
| article html file updated | 21 March 2019 06:37 CET | Update | - |
| article html file updated | 17 June 2015 14:15 CEST | Update | - |
| article html file updated | 9 December 2013 08:31 CET | Original file | - |
| article xml file uploaded | 9 December 2013 08:31 CET | Original file | https://www.mdpi.com/1422-0067/14/11/21319/xml |
| article pdf uploaded. | 25 October 2013 10:39 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/11/21319/pdf |
